While studies on grapes and cancer in humans are limited, a diet high in antioxidant-rich foods, such as grapes, has been linked to a lower risk of cancer Low intake of potassium has been linked to increased risks of high blood pressure, heart disease and stroke A study in 12, adults showed that people who consumed higher levels of potassium in relation to sodium were less likely to die from heart diseases than those who consumed less potassium Compounds found in grapes may help protect against high cholesterol levels by decreasing cholesterol absorption White grapes did not have the same effect Additionally, diets high in resveratrol, such as the Mediterranean diet , have been shown to decrease cholesterol levels as well Furthermore, compounds found in grapes may even decrease blood sugar levels.
In a week study in 38 men, those who took 20 grams of grape extract per day experienced decreased blood sugar levels, compared to a control group Resveratrol also increases the number of glucose receptors on cell membranes, which may have a beneficial effect on blood sugar Managing your blood sugar levels over time is an important factor in reducing your risk of diabetes. In one study, mice fed a diet supplemented with grapes showed fewer signs of damage to the retina and had better retinal function compared with mice who were not fed the fruit In a test-tube study, resveratrol was found to protect retinal cells in the human eye from ultraviolet A light.
This may lower the risk of developing age-related macular degeneration AMD , a common eye disease According to a review study, resveratrol may also help protect against glaucoma, cataract and diabetic eye disease Additionally, grapes contain the antioxidants lutein and zeaxanthin.
Several studies have demonstrated that these compounds help protect the eyes from damage from blue light Eating grapes may benefit your brain health and boost your memory. In a week study in healthy older adults, mg of a grape supplement per day significantly improved scores on a cognitive test measuring attention, memory and language compared to baseline values Another study in healthy young adults showed that drinking about 8 ounces ml of grape juice improved both the speed of memory-related skills and mood 20 minutes after consumption Studies in rats have shown that resveratrol improved learning, memory and mood when taken for 4 weeks Grapes contain many minerals necessary for bone health , including calcium, magnesium , potassium, phosphorus, manganese and vitamin K 1 , Though studies in rats have shown that resveratrol improved bone density, these results have not been confirmed in humans 36 , 37 , In one study, rats fed freeze-dried grape powder for 8 weeks had better bone absorption and retention of calcium versus rats that did not receive the powder Numerous compounds in grapes have been shown to protect against and fight bacterial and viral infections 39 , Grapes are a good source of vitamin C, which is well known for its beneficial impact on your immune system 1 , Grape skin extract has been shown to protect against the flu virus in test-tube studies Additionally, compounds in grapes stopped the herpes virus, chicken pox and yeast infections from spreading in test-tube studies Resveratrol may also protect against foodborne illnesses.
When added to different types of food, it was shown to prevent the growth of harmful bacteria, such as E. Resveratrol has been shown to lengthen lifespan in a variety of animal species This compound stimulates a family of proteins called sirtuins, which have been linked to longevity One of the genes that resveratrol activates is the SirT1 gene.
This is the same gene activated by low-calorie diets, which has been linked to longer lifespans in animal studies 47 , Resveratrol also affects several other genes associated with aging and longevity Chronic inflammation plays a key role in the development of chronic diseases, such as cancer, heart disease, diabetes, arthritis and autoimmune diseases, to name just a few Resveratrol has been linked to powerful anti-inflammatory properties In a study in 24 men with metabolic syndrome — a risk factor for heart disease — a grape powder extract equivalent to approximately 1.
Similarly, another study in 75 people with heart disease found that taking grape powder extract increased levels of anti-inflammatory compounds, compared to a control group A study in rats with inflammatory bowel disease showed that grape juice improved not only signs of the disease but also increased blood levels of anti-inflammatory compounds Grapes contain several important nutrients and powerful plant compounds that benefit your health.
Antioxidants in grapes, such as resveratrol, reduce inflammation and may help protect against cancer, heart disease and diabetes. Grapes are easy to incorporate into your diet, whether fresh, frozen, as juice or wine.
Grapes are a delicious fruit to snack on, but are they good for you? Gibson PR. J Gastroenterol Hepatol. Clin Exp Gastroenterol. American Academy of Allergy Asthma and Immunology. Anaphylactic actions to cherries, strawberries, and grapes.
Updated April 12, Antiplatelet, anticoagulant, and fibrinolytic activity in vitro of extracts from selected fruits and vegetables. Blood Coagul Fibrinolysis. Berkeley Wellness, University of California. Types of grapes. Updated July 10, Consumer Reports. Is the cloudy coating on blueberries safe to eat?
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We and our partners process data to: Actively scan device characteristics for identification. I Accept Show Purposes. Table of Contents View All. Table of Contents. Nutrition Facts. Health Benefits. Adverse Effects. When They're Best. Storage and Food Safety. How to Prepare. Calories : 62 Fat : 0. Summary Grapes are a vitamin-rich and hydrating fruit that provides plenty of vitamin C, K, and A. Fundamentals of Nutrition. Was this page helpful?
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