What are the benefits of grapes and to whom he may hurt
Educational Program Health / / December 19, 2019
A quarter of the daily value of vitamin C, almost a third of the daily value of vitamin K, but still a decent dose of B vitamins, fiber, potassium, copper - that's what you getGrapes, red or green (European type, such as Thompson seedless), rawEating vinogradinok 15-20 (approximately 150 g). But this is not all the benefits that brings the body juicy berries.
What are the benefits of grapes
1. It helps preserve youth
The grapes have a huge amount of flavonoidsGrape and other antioxidants. According to some reportsVarietal differences among the polyphenol profiles of seven table grape cultivars studied by LC-DAD-MS-MS, There are more than 1500 items!
The basic operation of all these nutrients - the fight against free radicals, molecules that damage organs and tissues, causing mutation and accelerated aging. That is, when you eat grapes, you are helping your body stay young longer.
To get the mostExtractable amounts of trans-resveratrol in seed and berry skin in Vitis evaluated at the germplasm level
antioxidants, eat grapes with the skins and seeds. And favored varieties of black and red colors.
2. Grapes reduce risk of chronic diseases
Oxidative stress is often a trigger for the development of diseases such as diabetes, cardiovascular disorders or brain dysfunction. Antioxidants reduce the number of free radicals and help repair cells damaged by them. This means that the use of grapes - a good preventionGrapes and human health: a perspective many dangerous diseases.
3. It protects against cancer
It is proved that the antioxidant resveratrol, which is found in grapes, blocksThe occurrence of resveratrol in foodstuffs and its potential for supporting cancer prevention and treatment. A review the growth and spread of cancer cells in the body. This is especially true of Oncology:
- colon;
- prostate;
- breast;
- lungs;
- skin.
As shown by some studiesEffects of a grape-supplemented diet on proliferation and Wnt signaling in the colonic mucosa are greatest for those over age 50 and with high arginine consumptionTo get a clear anti-cancer effect, enough to eat 150-450 grams of grapes per day.
4. Lowers "bad" cholesterol
This effect is setComparative effects of red and white grapes on oxidative markers and lipidemic parameters in adult hypercholesterolemic humans at the use of red and black berry varieties.
5. Grapes can reduce blood sugar levels
Sounds somewhat paradoxical, because everyone knows that grapes - sweet product, it is literally bursting from glucose. But the amount of sugar in the berries is not the main indicator. Much more significant glycemic index (GOP).
It shows how much a particular product increases the level of blood sugar. Now, grapes glycemic index is even lower than that of boiled rice, jacket potatoes or oatmeal cookies.
Moreover, due to the compounds contained in it, even the grapes reduces the amount of glucose in the blood. For example, the same antioxidant resveratrol increasesModulation of SIRT1-Foxo1 signaling axis by resveratrol: implications in skeletal muscle aging and insulin resistance the body's sensitivity to insulin, ie, helps cells absorb sugar more active.
Therefore, the grapes - a good way to protect against high blood sugar.
6. strengthens eyesight
there are studiesResveratrol and Ophthalmic DiseasesProving that the grapes can reduce the risk of diseases such as:
- glaucoma;
- cataract;
- visual impairment due to diabetes.
In addition, there is evidenceProtective Effects of Resveratrol against UVA-Induced Damage in ARPE19 CellsThat eating sweet berries reduces UV damage of the retina. Therefore grapes strictly necessary to include in the diet during periods when the sun is particularly aggressive.
7. It can improve memory, attention and mood
Scientific data on the subject is not enough, but those that are there seem to be promising.
Thus, in one studyCognitive and mood improvements following acute supplementation with purple grape juice in healthy young adults 20 young people passed the tests for attention and told scientists about his mood. Then the drinking cup (230 ml) of red grape juice and again passed the test. Result: The juice of the berries is significantly improved memory and ability to concentrate. A bonus soothes and improves mood.
Curious look and experiments on rats. The animals, however, are not fed berries, and "grape" antioxidant resveratrol. Four weeks after the start of the studyResveratrol prevents age-related memory and mood dysfunction with increased hippocampal neurogenesis and microvasculature, and reduced glial activation It found that blood flow has improved significantly in the rat brain, and tailed themselves have become more attentive and trained.
It is assumedDietary resveratrol prevents Alzheimer's markers and increases life span in SAMP8.That resveratrol contained in grapes may protect against age-related changes in the brain: dementia, and in particular, Alzheimer's disease. But to argue that, while not enough studies in humans.
8. Grapes prolongs life
Head here again resveratrol. Among other things, this antioxidant stimulatesEffects of resveratrol, curcumin, berberine and other nutraceuticals on aging, cancer development, cancer stem cells and microRNAs production of the body's sirtuins proteins that scientists have linked to longevity.
When and to whom the grapes harmful
In general, the grapes are not only useful, but also safe. Almost all - with a few exceptions.
Doctors still recommendGrape not eat berries or limit their number:
- Children under 5 years old. This is due to the fact that the child can swallow and choke berry.
- Pregnant women and nursing mothers. Information that the grapes can harm a child, no. But scientists in this case, prefer to play safe.
- People who are preparing for surgery. Grapes can slow blood clotting, and thus increases the risk of bleeding. It is better to give up these berries a couple of weeks before the operation.
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