Grapes
The combination of unique texture and sweet, tart flavor has made grapes an ever popular between-meal snack as well as a refreshing addition to both fruit and vegetable salads.
Properties of Grapes
1 - One of the important properties of grape, blood purification and blood is being made, however, this property is in red grapes, green grapes act. So if you are suffering from anemia, eating grapes, red or ruby ??you recommend.
2 - People who are obese and want very Laghrnd can drink a glass of grape juice in the morning and a cup of evening.3 - grape juice for those who are weak due to a long illness, very useful. People who are recovering from illness or general weakness, try grapes, carrots, apples and peaches are in abundance. Of course it is better if the fruit with the crumble and juice Juice mixed drink sip throughout the day.
4 - Grapes for tuberculosis, constipation, hemorrhoids and healing effect is pertussis.
5 - Grapes are very good food for people with high blood urea is acidosis.3 - grape juice for those who are weak due to a long illness, very useful. People who are recovering from illness or general weakness, try grapes, carrots, apples and peaches are in abundance. Of course it is better if the fruit with the crumble and juice Juice mixed drink sip throughout the day.
4 - Grapes for tuberculosis, constipation, hemorrhoids and healing effect is pertussis.
5 - Grapes are very good food for people with high blood urea is acidosis.
9 - Grape is increased appetite.
10 - Grapevine, rid the body of toxins and will relieve constipation.
11 - If grape juice and rub it on the skin, and the skin on the side of China Vchrvk it is refreshing.
11 - Grapes for those with arthritis, rheumatism, gout and kidney stones are useful.
12 - Grapes for those suffering from poisoning, complications of high blood pressure, indigestion, skin disorders, boils, eczema, and nephritis (kidney abscess) are beneficial.
13 - grape milk increases women.
14 - Grape removal aching sadness and intense, very effective. Lyhalslam has been quoted from Imam Sadiq said: "The water of the flood of Noah, and Noah's thumb ground cemeteries, the dead bone saw and was very sad, God revealed to him that the grape Eat sorrow away. "(Bharalanvar / C 14 / Bob Atmh and drinks)
15 - Grape is an important factor for back muscle.
16 - Grape is a good food for the nervous system and relieves pressure on the nerve.
17 - grapes is very useful for improving heart disease.
18 - grapes also helps regulate blood sugar. Pictures of grape sugar into the blood, the muscles, the force does work.
19 - Grape cause stomach and intestinal cleansing of waste material and can be harmful.
20 - Grapes Double meat makes the body produce energy, but unlike meat does not increase blood urea.
21 - According to new research, grapes, many pathogenic microbes inside the body eliminates it.
Properties of red grapes
Red grapes can prevent atherosclerosis and vascular occlusion.
According to the researchers, "Rich Blood, rapid oxidation of cholesterol, hardening of the arteries or atherosclerosis are major causes of heart disease." These researchers have found that eating red grapes, cholesterol oxidation, reduced blood vessel be expanded, and blood flows through the body more quickly addition, eating red grapes can improve heart function.
Red grapes are a good source of antioxidants called "Kvyrnstyn" is. Grape skin contains white matter "Rzvratvl" that the condensation buildup on blood platelets and thereby prevent blood clots in the veins is blocked.
Caution cases
1 - high consumption of grapes cause cramping and diarrhea, so do not indulge in eating it.
2 - The use of grapes for people with diabetes (diabetes) is harmful.
3 - Continuous use grape juice can cause kidney stones and urinary sediment.
4 - Eating grapes and young wines, causing abnormalities in the stomach.
5 - Grape cold and dry and the poor Mdhhay causes bloating.
6 - Eating grapes in excess is bad for the liver and stomach, and may even lead to bowel obstruction, and stomach.
7 - drinking cold water after eating Grape, is harmful to the stomach.
What's New and Beneficial About Grapes
Grapes have long been classified as a low glycemic index (GI) food, with GI values ranging between 43-53. But having a low GI value is not necessarily the same as having blood sugar benefits. In the case of grapes, recent studies have shown that the low GI value of grapes is also a good indicator of this fruit's blood sugar benefits. Better blood sugar balance, better insulin regulation, and increased insulin sensitivity have now been connected with intake of grape juices, grape extracts, and individual phytonutrients found in grapes.
Several grape phytonutrients are now believed to play a role in longevity. At the top of the list in this area of research is resveratrol (a stilbene phytonutrient present mostly in grape skins, but also in grape seeds and grape flesh). Resveratrol has recently been shown to increase expression of three genes all related to longevity. (These three genes are SirT1s, Fox0s, and PBEFs.) Interestingly, some researchers have shown a parallel between activation of these longevity genes by resveratrol and activation by calorie-restricted diets. In aging and longevity research, our ability to get optimal nutrition for the fewest possible amount of calories is related to our longevity, and the more we can decrease our calories while staying optimally nourished, the better our chances of healthy aging and longevity.
The 2011 edition of the Shopper's Guide to Pesticides by the Environmental Working Group has once again identified conventionally grown grapes as one of most problematic fruits and vegetables in terms of pesticide residues. There's new evidence that pesticide residues can be successfully avoided by purchase of certified organic grapes. In a recent study of 99 vineyards in the Aegean Sea area of the Mediterranean, pesticide residues were found on conventionally grown table grapes, but were determined to be undetectable on grapes that had been organically grown. This new evidence adds to our confidence about the added health benefits of selecting organically grown grapes.
Diet Plan Recommendations
In our Healthiest Way of Eating Plan, we encourage the consumption of 5-10 servings of fruits-plus-vegetables (combined) eat day. We believe that the balance between fruits and vegetables can vary from day to day, depending upon personal health factors, personal taste preferences, and optimal combining of foods in recipes as well as meals. We recognize that our recommendation calls for a more generous amount of fruits and vegetables than the amount recommended by the Centers for Disease Control (CDC) at the U.S. Department of Health and Human Services (DHHS). The CDC recommends between 1.5-2.5 cups of fruit and 2.5-4.0 cups of vegetables per day, as well as a target goal of at least 5 fruit-plus-vegetable servings (combined) per day. We recommend that you set your fruit goals higher than these CDC amounts. Based on the scientific research, we believe it's going to take closer to 3 fruit servings per day (consisting of one cup's worth of fruit per serving, or 3 cups total per day) to provide you with optimum health benefits.
With respect to berries (and remembering that grapes are included among the berry fruits), we recommend that you include berries at least 3-4 times per week within your fruit servings. In several of our sample meal plans, we include berries on a daily basis! It would definitely not be a mistake for you to include a serving of either grapes, raspberries, blueberries, strawberries, cranberries or other berries in your daily meal plan! When you're including grapes among your daily fruit servings, you should treat one cup as the equivalent of approximately 15-20 grapes. In practice, what this means is that on any given day, if you decide that you would like to consume all 3 of your fruit servings from this delicious food, you can feel confident enjoying up to 45-60 grapes! On another day, if you are primarily in the mood for other kinds of fresh fruit, there is still plenty of room within this 3-serving range to include some fresh grapes on a salad, or enjoy a small cluster along with a snack.
This chart graphically details the %DV that a serving of Grapes provides for each of the nutrients of which it is a good, very good, or excellent source according to our Food Rating System. Additional information about the amount of these nutrients provided by Grapes can be found in the Food Rating System Chart. A link that takes you to the In-Depth Nutritional Profile for Grapes, featuring information over 80 nutrients, can be found under the Food Rating System Chart.
Health Benefits
Description
History
How to Select and Store
Tips for Preparing and Cooking
How to Enjoy
Individual Concerns
Nutritional Profile
References
Health Benefits
Description
History
Health Benefits
Few fruits have garnered as much attention in the health research literature as grapes. Part of the reason may be their widespread presence in diets worldwide. With the exception of Antarctica, grapes are cultivated on all of the earth's continents, and researchers from many different countries have been especially interested in this food. But an even greater part of the reason involves the amazing nutrient composition of grapes themselves. Every year, it seems like the list of health-supportive grape nutrients grows longer, and it can be challenging just to keep up with the many phytonutrients provided by this popular food.
Organized according to science-based categories, the list below will give you a general idea of the phytonutrient richness of grapes. While a single grape variety is unlikely to contain all of the phytonutrients listed below, grapes as a group have been shown to provide us with the following health-supportive nutrients:
Stilbenes
resveratrol
piceatannol
pterostilbene
Flavanols
catechins
epicatechins
procyanidins
proanthocyanidins
viniferones
Flavonols
quercetin
kaempferolmyricetin
isorhamnetin
Phenolic Acids
caffeic acid
coumaric acid
ferulic acid
gallic acid
Carotenoids
beta-carotene
lutein
zeaxanthin
In addition to the above-listed nutrients, grapes have also been shown to contain the hormone and antioxidant melatonin as well as unique oligopeptides (small protein-like molecules) that have anti-bacterial and other properties.
With their overwhelming number of health-supportive phytonutrients, it is not surprising that grapes have been shown to provide many of our body systems with predictable benefits. Areas of benefit in grape research include the cardiovascular system, respiratory system, immune system, inflammatory system, blood sugar regulating system, and nervous system. Another area of special benefit is cancer prevention, with risk of breast, prostate, and colon cancer emerging as the most likely areas of grape anti-cancer benefits. The following paragraphs will give you a closer look at some key areas of health research on grapes.
Antioxidant Benefits
The wealth of antioxidant nutrients in grapes is somewhat startling! In addition to providing us with conventional antioxidant nutrient like vitamin C and manganese, grapes are filled with antioxidant phytonutrients that range from common carotenoids like beta-carotene to unusual stilbenes like resveratrol, and the total number of different antioxidant nutrients in grapes runs well into the hundreds. (Even the hormone melatonin has been identified in grapes and is known to act as an antioxidant provided by this food.) It's important to note that the seed and the skin contain the richest concentration of antioxidants. It's very rare to find a higher concentration of an antioxidant in the fleshy part of the grape than is present in the seed or skin. For this reason, most of the health research on grape antioxidants has not been conducted on whole grapes. Instead, this research has been conducted on grape skin, grape skin extract, grape seed, grape seed extract, or on grape extracts that contain skin and seed and flesh. As a general rule, the flesh of the grape contains approximately 1/20th-1/100th of the total antioxidant capacity of the seed or the skin.
The greater concentration of antioxidants in the skin and seed of grapes does not mean that we don't benefit from eating the whole grape, including the flesh! But it does mean that we need to treat grape studies as a whole as most likely reflecting stronger short-term antioxidant benefits than would be associated with short-term intake of whole grapes.
Research on antioxidant benefits provided by grapes or grape components includes the following findings. Grapes and grape components can:
help prevent certain oxygen-related enzymes from becoming overactive. These enzymes include xanthine oxidase and catalase.
increase our blood levels of glutathione (a critical antioxidant nutrient) and also increase the ratio of reduced-to-oxidized glutathione (one important measure of antioxidant capacity).
help protect cell membranes from free radical damage.
lower levels of oxygen reactive molecules in our blood.
reduce oxidation of fat (lipid peroxidation).
lower biomarkers of oxidative stress.
Anti-Inflammatory Benefits
Along with their strong antioxidant support, grapes provide us with equally strong anti-inflammatory benefits. Once again, research studies in this area have seldom involved dietary intake of whole grapes, but rather supplemental intake of grape components or grape extracts. Still, we have every reason to believe that these same anti-inflammatory benefits are offered by whole, fresh grapes, perhaps just not to the same extent in a short-term situation (like the few weeks or months that characterize most research studies). It's important to remember that we can enjoy grapes over a lifetime!
Grapes have been determined to lower our risk of excessive and unwanted inflammation in a variety of ways. Many pro-inflammatory messaging molecules can have their activity level reduced by grape intake. These molecules include interleukin 6 (IL-6), interleukin 1-beta (IL-1B), and tumor necrosis factor alpha (TNF-alpha). Overproduction of the pro-inflammatory enzymes cyclo-oxygenase 1 and 2 (COX-1 and COX-2) is also less likely following intake of grape components.
Cardiovascular Benefits
No body system is better situated to reap the benefit of antioxidants and anti-inflammatory molecules in grapes than the cardiovascular system. All cells in our blood need protection from potential oxygen damage (especially in our arteries where oxygen concentration in our blood is especially high). Our blood vessel linings also need strong antioxidant support. Chronic inflammation in our cardiovascular system is also a primary concern for many types of cardiovascular disease, and optimal regulation of inflammatory system activity is especially important in lowering our risk of atherosclerosis and other conditions.
The list of cardio benefits provided by grapes and grape components is perhaps the most impressive of all grape benefits. It's also one of the reasons that consumption of grapes in the form of red wine has been regarded by some researchers as a key for understanding "the French Paradox." The French Paradox refers to research observations about heart health in the French population in relationship to their saturated fat intake. Despite eating fairly large amounts of saturated fat in their overall diet, the French population as a whole has been observed to have much lower levels of heart disease than would be expected with high saturated fat intake. One of the reasons might be the anti-inflammatory (and antioxidant) support provided to their cardiovascular system on a regular basis by red wine. The idea that red wine (from red grapes) could help explain the French Paradox is just one more reason for us to consider grapes as a great addition to a heart healthy diet.
All of the following cardio benefits have been demonstrated in research studies on grapes and grape components:
better blood pressure regulation, including blood pressure reduction if high
better total cholesterol regulation, including total cholesterol reduction if high
reduced LDL cholesterol levels
reduced LDL oxidation
reduced levels of reactive oxygen molecules in the blood
reduced likelihood of cell adhesion to the blood vessel walls
less clumping together of platelet cells, when inappropriate
enhanced release of nitric oxide from endothelial cells lining the blood vessel walls in situations where vasodilation is needed
better inflammatory regulation in the blood
increase levels of glutathione in the blood
Blood Sugar Benefits
In terms of blood sugar regulation, not all fruits are created equal. Watermelon, for example, has a relatively high glycemic index (GI) value in the range of 70-75, and is not considered to be a food that can be freely eaten by persons having difficulty with blood sugar balance. Grapes, on the other hand, have long been classified as a low glycemic index (GI) food, with GI values ranging between 43-53. In the case of grapes, recent studies have also shown that the low GI value of grapes is a good indicator of this fruit's blood sugar benefits. Studies have now connected grape intake to better blood sugar balance, better insulin regulation, and increased insulin sensitivity. We suspect that the strong phytonutrient content of grapes plays a key role in providing these blood sugar-related benefits.
Anti-Aging and Longevity Benefits
Several grape phytonutrients may play a role in longevity and may provide us with anti-aging benefits. Best-studied in this area of health benefits is resveratrol (a stilbene phytonutrient presently mostly in grape skins, but also in grape seeds and grape flesh). Resveratrol has recently been shown to increase expression of three genes all related to longevity. (These three genes are SirT1s, Fox0s, and PBEFs.) Interestingly, some researchers have shown a parallel between activation of these longevity genes by resveratrol and activation by calorie-restricted diets. (In aging and longevity research, our ability to get optimal nutrition for the fewest possible amount of calories is related to our longevity, and the more we can decrease our calories while staying optimally nourished, the better our chances of healthy aging and longevity.)
Cognitive Benefits
Several recent studies on grape extract intake by animals, as well as grape juice intake by humans, suggest that grapes may provide us with some important cognitive benefits. For example, daily consumption of Concord grape juice in a 1-2 cup amount over a period of several months has been shown to improve the scores of study participants on the California Verbal Learning Test. Other studies on animals have shown that excessive accumulation of reactive oxygen species (ROS) in the brain can be prevented with intake of grape extracts, as can excessive accumulation of beta-amyloid protein in the hippocampus region of the brain. Synthesis of pro-inflammatory messaging molecules in the brain (including IL-6, IL-1B, and TNF-alpha) has also been shown to be reduced by intake of grape extracts. While large-scale human studies are needed to confirm these potential benefits, we expect that grape benefits for our cognitive health will be confirmed in future research.
Anti-Microbial Benefits
Numerous grape phytonutrients have been shown to have anti-microbial properties. These phytonutrients range from common flavonoids like quercetin to less common stilbenes like piceatannol and resveratrol. Recent studies have determined that grapes may also contain unique sets of oligopeptides (short protein-like molecules) that have anti-microbial properties. Exactly how we benefit from these anti-microbial substances in grapes is not yet known. But researchers have begun to speculate about their possible role in helping us prevent microbe-related problems like food-borne illness. While research in this area is clearly in its early stages, it will be interesting to see whether diets that are rich in grapes (or grape products like red wine) turn out to be associated with reduced risk of microbe-related problems like food-borne illness.
Anti-Cancer Benefits
The antioxidant and anti-inflammatory properties of grapes make them a natural for protection against cancer because chronic oxidative stress and chronic inflammation can be key factors in the development of cancer. If our cells get overwhelmed by oxidative stress (damage to cell structure and cell function by overly reactive oxygen-containing molecules) and chronic excessive inflammation, our risk of cell cancer is increased. By providing us with rich supplies of antioxidant and anti-inflammatory nutrients, grapes can help us avoid this dangerous combination of chronic oxidative stress and chronic inflammation.
Research on grapes, grape components and cancer has focused on three cancer types: breast cancer, colon cancer, and prostate cancer. In the case of breast cancer, the grape phytonutrients receiving the most research attention have been the catechins, proanthocyanidins, and stilbenes (especially resveratrol). For colon cancer, more research attention has been focused on grape flavonoids and grape anthocyanins. (This research tendency may mean that dark purple, red, and black grapes could end up being better choices for colon cancer prevention than green grapes, even though the jury is still out in this area.) One interesting development in the research on grapes and colon cancer prevention has involved studies on GADF, or grape antioxidant dietary fiber. While GADF is a proprietary product that may eventually be sold in the marketplace as a dietary supplement, the idea that grape fiber and grape antioxidants combine to provide our colon with special support makes perfect sense. Fiber is greatly needed for a healthy colon, and grapes provide us with approximately 1 gram of fiber in every 60 calories. Antioxidants are also needed, and grapes come through strong in the antioxidant category. This antioxidant-plus-fiber combination may be one of the reasons that colon cancer prevention has jumped out in health research on grapes. In the area of prostate cancer, it is the stilbenes (including resveratrol) have been the major focus in research on the anti-cancer properties of grapes.
Description
While table, wine, and raisin grapes come from the same family (Vitaceae) and genus (Vitis) of plant, there are about 60 different species of this plant type, and within these 60 species, there are literally thousands of grape varieties. (In the country of Italy, for example, more than 1,000 varieties of wine grapes are found in hillside vineyards.) Table grape varieties are most often larger in size, have been propagated to be seedless, and have relatively thin skins. Wine grapes are usually smaller in size, contain seeds, and have relatively thick skins. (Among several different types of benefits, the thicker skin of the wine grapes helps provide the wine with a richer aroma.) All types of grapes come in a variety of colors. While green, red, and black are the most commonly consumed color varieties in the U.S., grape colors also include amber/yellow, blue black, crimson, pink, and purple. (Although you may also hear the color "white" being used to refer to grapes, "white grapes" are actually green in color.)
While we often think about the Mediterranean as the home for all grapes, this amazing food is actually native to many parts of the world, including regions in Asia, Africa, and North America. From a botanical standpoint, one of the most widely cultivated table and wine grapes is Vitis vinifera (Common Grape Vine), and several thousand varieties of this grape exist across Europe. In the United States, native species of Vitis grapes include Vitis labrusca (which includes the Concord grape) and Vitis rotundifolia (which includes the muscadine grapes). In Asia, one native grape that is widely-cultivated is Vitis amurensis (the Amur grape). From a commercial standpoint, grape varieties from around the world have now been hybridized to produce unique blends of flavor, texture, and environmental suitability.
There has been a good bit of confusion—especially on the internet—about seedless grapes and their production. Many websites mistakenly assume that seedless grapes have been genetically modified. While agricultural researchers are definitely exploring genetically modified grape varieties and while genetically engineered (GE) grapes do exist, they are very rare in the marketplace. Some seedless varieties of grapes are the result of natural mutations, and these varieties can be vegetatively propagated to allow for commercial production. Other grape varieties will produce seedless fruit if pollination is withheld. Still other varieties of seedless grapes can be produced by crossbreeding or grafting. None of these methods involves direct manipulation of the grape plant's genetic material. With many foods, purchase of a certified organic version is one of your best ways to avoid a genetically modified version. In the case of grapes, even though we strongly recommend the organic version for a variety of reasons, avoidance of GE is not one of them. You're unlikely to get GE grapes even if you are purchasing conventionally grown varieties.
History
Grapes have a long and abundant history. While they've grown wild since prehistoric times, evidence suggests they were cultivated in Asia as early as 5000 BC. The grape also played a role in numerous biblical stories, being referred to as the "fruit of the vine." Grapes were also pictured in hieroglyphics in ancient Egyptian burial tombs. During the ancient Greek and Roman civilizations, grapes were revered for their use in winemaking. They were planted in the Rhine Valley in Germany, a place of notable wine production, in the 2nd century AD. Around this time, over 90 varieties of grapes were already known.
Even though grapes are known to have grown wild on many continents - including Europe, Asia, Africa, and North America - travel and exploration (together with a cultural fondness for this food and its wines) led to transport of native grapes across the world. For example, as European travelers explored the globe, they brought native European ("old World") grapes with them. Grapes were planted in the United States as early as the 17th century at Spanish missions in the Southwest. They also found a lasting home in the central valley of California where climate, and the relative absence of grape-preying insects, helped support their production.
In the United States, well over 90% of all commercially grown table grapes come from California, where over 700,000 acres of grapes (including table, wine, and raisin grapes) are in cultivation. Nearly 2 billion pounds of table grapes come from these 700,000 acres each year! Early in the year, from January to April, U.S. consumers depend upon imported grapes, including imports from South American countries like Chile. During May and June, imported Mexican grapes are widely available. After June, California grape production takes over the commercial marketplace in the U.S.
Worldwide, about 30,000 square miles of land are planted with grapes, resulting in the annual production of 150 trillion pounds of grapes. Grape production in five countries—Italy, China, Spain, and France—accounts for about half of all commercial production, and about one-third of all world vineyards are found in the three countries of Italy, Spain, and France. Other important grape-producing countries include Turkey, Chile, Argentina, Iran, South Africa, and Australia.
How to Select and Store
For the best tasting grapes with high concentrations of antioxidants select those that are fully ripe. Fully ripened grapes are plump and free from wrinkles. They should be intact, firmly attached to a healthy looking stem, and not leaking juice. The area around the attachment should have the same color as the rest of the grape.
One way to help predict the sweetness of grapes is by their color. Green grapes should have a slight yellowish hue, red grapes should be mostly red, while purple and blue-black grapes should be deep and rich in color.
Since grapes tend to spoil and ferment at room temperature, they should always be stored in the refrigerator. Loosely wrap unwashed grapes in a paper towel and place them in an airtight container or plastic bag. This way, they'll keep fresh in the refrigerator for up to 5 days.
While freezing detracts from some of their flavor, frozen grapes are a wonderful snack and particularly intriguing to children. To freeze grapes, wash and pat them dry, then arrange in a single layer on a cookie sheet and place in freezer. (Patting the grapes dry is important, because excess moisture can cause the grapes to stick together and become one large frozen fruit clump.) Once frozen, transfer grapes to a heavy plastic bag and return them to the freezer.
Tips for Preparing and CookingTips for Preparing Grapes
Grapes should be washed under cold running water right before consuming or using in a recipe. After washing, either drain the grapes in a colander or gently pat them dry. If you are not going to consume the whole bunch at one time, use scissors to separate small clusters of grapes from the stem instead of removing individual grapes. This will help keep the remaining grapes fresher by preventing the stem from drying out.
While some recipes call for peeled grapes, evaluate the recipe to see whether including the skin would actually greatly change the taste and texture, since the grape skin contains many of the fruit's vital nutrients. If retention of the skin isn't objectionable for recipe reasons, we recommend that you always include the skin on account of its nutrient richness. If you decide to use peeled grapes, it's easier to use the American varieties since their skin more readily pulls away from the pulp.
Healthiest Way of Preparing Grapes
How to Enjoy
A Few Quick Serving Ideas
Grapes are a wonderful addition to any fruit salad. For an enhanced visual effect, consider using a few different varieties of grapes.
Give your curries a fruity punch by including fresh grapes in the recipe.
Add grapes to mixed green salads.
Grapes are great served with cheese as a snack or within a green salad.
Best Recipes That Feature Grapes
Yogurt with Fruit
10-Minute Fruit & Cheese Salad
Grape and Arugula Salad
Grape and Melon Salad
5-Minute Grapes in Honey-Lemon Sauce
Ginger Yogurt with Fruit
Individual Concerns
If you are drinking grape juice for health benefits, avoid products labeled as grape "drinks." This is often an imitation high-sugar product with little real grape juice.
Grapes and Pesticide Residues
Virtually all municipal drinking water in the United States contains pesticide residues, and with the exception of organic foods, so do the majority of foods in the U.S. food supply. Even though pesticides are present in food at very small trace levels, their negative impact on health is well documented. The liver's ability to process other toxins, the cells' ability to produce energy, and the nerves' ability to send messages can all be compromised by pesticide exposure. According to the Environmental Working Group's 2012 report "Shopper's Guide to Pesticides in Produce," grapes are among the 12 foods on which pesticide residues have been most frequently found. Therefore, individuals wanting to avoid pesticide-associated health risks may want to avoid consumption of imported grapes unless they are grown organically.
Nutritional Profile
Grapes are an outstanding source of phytonutrients, especially phenols and polyphenols. The phytonutrients in grapes can differ not only due to growing conditions but also from species to species and variety to variety. Taken as a group, grapes offer phytonutrients in 5 basic categories: flavanols and flavonols (both flavonoids); phenolic acids; stilbenes; and carotneoids. Grape flavonoids include catechins, epicatechins, procyanidins, quercetin, and petunidin. Grape phenolic acids include coumaric acid, caffeic acid, ferulic acid, and gallic acid. Stilbenes in grapes include resveratrol, piceatannol, and pterostilbene. The carotenoids beta-carotene, lutein, and zeaxanthin are also provided in valuable amounts in many varieties of grape Grapes are excellent sources of free radical-scavenging manganese, a very good source of bone-healthy vitamin K, and good sources of heart-healthy vitamin B6 and potassium, energy-producing thiamin (vitamin B1), and immune-supportive vitamin C.
In-Depth Nutritional Profile
Introduction to Food Rating System Chart
In order to better help you identify foods that feature a high concentration of nutrients for the calories they contain, we created a Food Rating System. This system allows us to highlight the foods that are especially rich in particular nutrients. The following chart shows the nutrients for which this food is either an excellent, very good, or good source (below the chart you will find a table that explains these qualifications). If a nutrient is not listed in the chart, it does not necessarily mean that the food doesn't contain it. It simply means that the nutrient is not provided in a sufficient amount or concentration to meet our rating criteria. (To view this food's in-depth nutritional profile that includes values for dozens of nutrients - not just the ones rated as excellent, very good, or good - please use the link below the chart.) To read this chart accurately, you'll need to glance up in the top left corner where you will find the name of the food and the serving size we used to calculate the food's nutrient composition. This serving size will tell you how much of the food you need to eat to obtain the amount of nutrients found in the chart. Now, returning to the chart itself, you can look next to the nutrient name in order to find the nutrient amount it offers, the percent Daily Value (DV%) that this amount represents, the nutrient density that we calculated for this food and nutrient, and the rating we established in our rating system. For most of our nutrient ratings, we adopted the government standards for food labeling that are found in the U.S. Food and Drug Administration's "Reference Values for Nutrition Labeling." Read more background information and details of our rating system.
Seven Reasons Why Grapes Are Good for You
You don't need a Ph.D. or an M.D. to intuitively sense that fresh grapes are good for you. After all, people have been cultivating and eating them for thousands of years. From ancient times onward, grapes have also delighted our senses with their beauty, sweetness and luscious, thirst-quenching qualities.
Today, research scientists have been discovering exciting new facts about grapes and why they may benefit health in so many ways. Here are seven great reasons to add grapes to your day:
1. Grapes Deliver Antioxidants and Other Polyphenols. Grapes of all colors contain a variety of antioxidants and other polyphenols. These beneficial antioxidants neutralize harmful free radicals to help prevent the process of oxidation that damages cells. Sounds pretty technical, but in fact, neutralizing free radicals happens naturally when we eat foods like grapes that contain lots of antioxidants. When free radicals are left to their own devices, a condition called "oxidative stress" occurs. Oxidative stress is now associated with numerous health conditions and chronic illnesses.
2. Love Your Heart: Eat Grapes. Human studies have shown that eating a variety of grapes may help support a healthy heart by improving blood flow, arterial flexibility and blood vessel function. Grape consumption may also help prevent platelet aggregation, which can lead to clot formation. Grapes also promote healthy arteries by helping prevent the oxidation of bad "LDL" cholesterol, which is a key contributor to the build-up of plaque in the arteries.
3. "Grape" News for High Blood Pressure. In a recent series of laboratory studies, rats were fed a salty diet and their blood pressures rose as a result. When grapes were added to their diet blood pressure levels dropped, heart function improved and inflammation was reduced throughout their bodies. These animals also showed fewer signs of heart damage compared to those who did not receive grapes in the diet.
4. A Boost for Colon Health. In a small human study of colon cancer patients, those who ate 2 1/2 cups of grapes per day for two weeks were able to inhibit certain genes that promote tumor growth in the colon. This benefit was observed in the healthy tissue of the subjects' colons, not the cancerous, indicating a potential role for grapes in maintaining a healthy colon.
5. All Eyes Are On Grapes. In a recent laboratory study, grapes prevented blindness in mice that were prone to developing retinal damage in old age, similar to age-related macular degeneration in humans. When compared to lutein, grapes offered significantly more protection.
6. Grapes are Brain Food. In preliminary studies, grapes seem to help protect brain health by counteracting oxidative stress and inflammation, or by targeting the actions of certain genes involved in age-related diseases of the brain.
7. Supporting Men's Health. Prostate enlargement is a significant concern for men. A series of animal studies showed that consuming grapes helped to protect against the loss of bladder function associated with a partial obstruction – similar to that resulting from an enlarged prostate – which can cause the bladder to weaken. Adding grapes to the diet provided a strong antioxidant effect and membrane-protective properties that significantly reduced and reversed bladder damage caused by a partial obstruction.
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