Because wine contains tannins, anthocyanosides, proanthocyanidins, resveratrol with antioxidant, clean blood vessels, decomposition of lipids, can slow down the aging of the body, the prevention of cardiovascular disease, helps to prevent atherosclerosis and progeria dementia, and other diseases, but also has the ability to reduce the risk of osteoporosis and "Reside in the face" and other important effects.
Organic acids contained in wine have the effect of mediating the nerve center, quenching thirst, aiding digestion and preventing constipation.
Wine contains Vc, Vb, niacin and other vitamins and calcium, magnesium, iron, potassium, sodium and other minerals, which minerals and a variety of trace elements content, far better than the best quality mineral water.
If you add anything else, it reduces the health benefits of the wine, and on the other hand, it affects the taste of the wine.
Of course, some people who are new to wine don't like the sour taste of dry wines, so they can drink sweet or semi-sweet wines first.