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2023 Author: Malcolm Clapton | [email protected]. Last modified: 2023-05-22 06:26
Eyesight and memory will become stronger, and your mood will be higher. But healthy grapes also have a dark side.
A quarter of the daily value of vitamin C, almost a third of the daily value of vitamin K, and also decent doses of B vitamins, fiber, potassium, copper - that's what you get Grapes, red or green (European type, such as Thompson seedless), raw, eating 15 –20 grapes (about 150 g). But this is far from all the benefits that juicy berries bring to the body.
What are the benefits of grapes
1. Helps to maintain youth
Grapes are rich in Grape flavonoids and other antioxidants. According to some data, Varietal differences among the polyphenol profiles of seven table grape cultivars studied by LC ‑ DAD ‑ MS ‑ MS, there are more than 1,500 items!
The main job of all these nutrients is to fight free radicals that damage the molecules of organs and tissues, causing mutations and accelerated aging. That is, when you eat grapes, you help the body stay young longer.
To get the maximum Extractable amounts of trans ‑ resveratrol in seed and berry skin in Vitis evaluated at the germplasm level of antioxidants, eat grapes with skin and seeds. And give preference to varieties of black and red.
2. Grapes Reduce the Risk of Chronic Disease
Oxidative stress often triggers the development of diseases such as diabetes, cardiovascular disorders, or brain dysfunctions. Antioxidants reduce the number of free radicals and help repair damaged cells. This means that the use of grapes is a good prevention of Grapes and human health: a perspective of many dangerous diseases.
3. It protects against cancer
The antioxidant resveratrol, which is found in grapes, has been shown to block the occurrence of resveratrol in foodstuffs and its potential for supporting cancer prevention and treatment. A review of the growth and spread of cancer cells in the body. This is especially true for oncology:
As some studies show Effects 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 consumption, eating 150–450 g of grapes a day is enough to get an obvious anti-cancer effect.
4. Lowers the level of "bad" cholesterol
This effect was established by Comparative effects of red and white grapes on oxidative markers and lipidemic parameters in adult hypercholesterolemic humans when eating red and black berries.
5. Grapes can lower blood sugar
It sounds somewhat paradoxical, because everyone knows that grapes are a sweet product, literally bursting with glucose. But the amount of sugar in berries is not the main indicator. Much more significant is the glycemic index (GI).
It shows how much a particular food increases blood sugar levels. So, grapes have a glycemic index even lower than boiled rice, jacket potatoes or oatmeal cookies.
Moreover, due to the compounds it contains, grapes even reduce the amount of glucose in the blood. For example, the same antioxidant resveratrol increases the Modulation of SIRT1 ‑ Foxo1 signaling axis by resveratrol: implications in skeletal muscle aging and insulin resistance the body's sensitivity to insulin, that is, it helps cells to more actively absorb sugar.
Therefore, grapes are a good way to protect against high blood sugar levels.
6. Strengthens vision
There are studies on Resveratrol and Ophthalmic Diseases showing that grapes can reduce the risk of diseases such as:
- visual impairment caused by diabetes.
In addition, there is evidence from Protective Effects of Resveratrol against UVA ‑ Induced Damage in ARPE19 Cells that eating sugary berries reduces UV damage to the retina. Therefore, grapes should be categorically included in the diet during periods when the sun is especially aggressive.
7. It can improve memory, attention and mood
There is little scientific evidence on this topic, but what we have seems to be promising.
For example, in one study, Cognitive and mood improvements following acute supplementation with purple grape juice in healthy young adults, 20 young people took attentiveness tests and told scientists about their mood. Then a glass (230 ml) of red grape juice was drunk and tested again. Result: The juice of these berries significantly improved memory and concentration. And as a bonus, it calmed and improved the mood.
Experiments on rats also look curious. The animals, however, were fed not with berries, but with the "grape" antioxidant resveratrol. Four weeks after the start of the study, Resveratrol prevents age-related memory and mood dysfunction with increased hippocampal neurogenesis and microvasculature, and reduced glial activation, it was found that blood circulation in the rat brain significantly improved, and the caudates themselves became more alert and learnable.
Supposedly Dietary 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 human studies are lacking to support this.
8. Grapes prolong life
The main thing here is resveratrol again. Among other things, this antioxidant stimulates Effects of resveratrol, curcumin, berberine and other nutraceuticals on aging, cancer development, cancer stem cells and microRNAs, the production of sirtuin proteins in the body, which scientists associate with longevity.
When and to whom grapes are harmful
In general, grapes are not only healthy, but also safe. For almost everyone - with rare exceptions.
Doctors still recommend Grape not to consume berries or limit their number:
- Children under 5 years of age. This is due to the fact that the child can swallow the berry and suffocate.
- Pregnant women and lactating mothers. There is no evidence that grapes can harm a child. But scientists in this case prefer to play it safe.
- People who are preparing for surgery. Grapes can slow blood clotting and therefore increase the risk of bleeding. It is better to give up these berries a couple of weeks before the operation.