Analyzing "Coarse Tea and Simple Food"
"Coarse tea" refers to mature or coarser tea leaves, as opposed to new tea. Although coarse tea is bitter and astringent, it contains substances like tea polyphenols and tannins that are very beneficial to the body. This is because tea polyphenols are a natural antioxidant that can inhibit the damage caused by free radicals in the human body and have anti-aging effects. They can also block the harmful effects of carcinogens such as nitrosamines on the body. Tannins, on the other hand, can lower blood lipids, prevent arteriosclerosis, keep blood vessels unobstructed, and maintain the normal function of the cardiovascular and cerebrovascular systems. In addition, tea polyphenols can alleviate and reduce the symptoms of diabetes, and have effects such as lowering blood lipids and blood pressure. Therefore, from a health perspective, coarse tea is more suitable for the elderly to drink.
Many people equate "simple food" with coarse grains and vegetarianism. In fact, "simple food" refers to natural foods rich in protein. It includes not only abundant grains and vegetables, but also lean meats like chicken, duck, fish, and beef.
"Simple food" also has another meaning: the diet should not be too salty. Medical research shows that a diet that is too salty can easily lead to osteoporosis and high blood pressure. A long-term diet that is too salty can also lead to stroke and heart disease.