Yams, known as the “small ginseng,” have miraculous effects of invigorating the spleen, nourishing the lungs, benefiting the stomach, and nourishing the kidneys. In Li Shizhen’s “Compendium of Materia Medica,” yams are highly praised for their ability to “invigorate the spleen and benefit health, nourish essence, strengthen the kidneys, treat various diseases, and heal the effects of overwork and injuries.”
Eating yams regularly not only enhances kidney energy but also promotes the healthy functioning of the spleen and stomach, making a person full of vitality. In the “Classic of Herbal Medicine” by Shen Nong, yams are revered as a top-quality tonic, emphasizing their preciousness.
Yams, also known as Chinese yam, are herbaceous vine plants belonging to the Dioscoreaceae family. As one of China’s traditional health foods, yams contain rich nutritional substances, earning them the title of “the treasure of health.”
Yams contain carbohydrates, dietary fiber, potassium, vitamins, yam polysaccharides, and various other nutrients. They possess functions such as antioxidation, anti-mutation, anti-tumor, blood sugar regulation, lipid reduction, protection against liver damage, and immune modulation. Firstly, the dietary fiber in yams helps regulate intestinal flora, moderate postprandial blood sugar spikes, reduce visceral fat accumulation, and enhance mineral absorption. This is crucial for maintaining intestinal health, controlling blood sugar, and improving lipid profiles. Secondly, yams are rich in potassium, maintaining normal cell osmotic pressure and acid-base balance, essential for heart and muscle function. Additionally, yam polysaccharides exhibit antioxidative, anti-tumor cell proliferation inhibition, enhanced white blood cell phagocytic capacity, liver protection, and immune regulation benefits. These functions play a significant role in preventing and treating various chronic diseases. Yams can also address issues like aging-related weakness, spleen deficiencies, and constipation due to intestinal dryness, demonstrating their medicinal value and health benefits. In conclusion, yams are nutrient-rich plants with medicinal uses. Properly combining yams with other ingredients can maximize their nutritional and medicinal benefits, promoting human health significantly.
While yams are a nutritious ingredient, certain precautions should be taken during consumption. Physicians advise that four categories of individuals should avoid yams to prevent adverse effects on the body. Firstly, individuals with diabetes should consume yams cautiously due to their starch content potentially leading to blood sugar spikes. Diabetics need to control their yam intake to maintain stable blood sugar levels. Secondly, individuals allergic to yams should avoid their consumption as yams contain substances that may trigger allergic reactions, causing symptoms like itching, swelling, or severe allergic responses. The third group includes individuals with weak digestive systems. The abundance of starch and fiber in yams may burden weak digestive systems, leading to indigestion and bloating. Therefore, individuals with weak digestive systems should consume yams in moderation to avoid disrupting digestion. Lastly, yams can trigger allergic reactions in some people, manifesting as rashes, breathing difficulties, etc. In cases of allergic symptoms, immediate cessation of consumption and medical assistance are recommended.
In conclusion, despite being a nutritious food, yams should be consumed cautiously or avoided by the aforementioned groups of individuals. If any discomfort arises during consumption, cease consumption immediately and seek medical attention. Additionally, individuals should consider their personal health conditions when selecting ingredients to prevent adverse effects from improper consumption.
