1. A large amount of glucose and fructose contained in grapes can be converted into energy after entering the body, which can quickly enhance physical strength and effectively eliminate physical fatigue. This is why eating some grapes can improve quickly when you are tired. 2. Anti-toxic and sterilized grapes contain natural polyphenols, which can combine with protein in viruses or bacteria, making them lose the ability to spread diseases. Drinking wine often has a good killing effect on spinal cord gray-white virus and other viruses, which makes people produce antibodies; 3. Improve allergic symptoms and prevent cancer. Resveratrol in grape skin can not only inhibit the operation of inflammatory substances, effectively relieve allergic symptoms, but also prevent normal cells from becoming cancerous and inhibit the spread of malignant cells, which has a strong anti-cancer effect. 4. There is also vitamin B 12 in anti-anemia grapes, and drinking red wine often is beneficial to treat pernicious anemia;