The efficacy and function of raw yam

Raw yam, also known as fresh yam, is a classic ingredient that has the same origin as medicine and food. It has many functions such as strengthening the spleen and stomach, nourishing the lungs and kidneys, promoting fluid production and nourishing yin.Its main functions include regulating the digestive system, enhancing immunity, improving fatigue and assisting in lowering blood sugar.This article will start from its core functions, analyze its application value in layers, and explain it based on its actual use to help readers fully understand this natural and healthy food.

1. Strengthen the spleen and stomach, regulate the digestive system

Raw yam is rich in amylase, polyphenol oxidase and other substances, which can promote digestion and absorption and relieve loss of appetite or diarrhea caused by weak spleen and stomach.Traditional Chinese medicine believes that it is mild in nature and sweet in taste, and it belongs to the spleen, lung, and kidney meridians. It is especially suitable for people with long-term irregular diet or weak spleen and stomach functions.Modern research also shows that the mucin in yam can protect the gastric mucosa and reduce gastrointestinal damage caused by irritating food.

2. Nourish the lungs and kidneys, and enhance physical fitness

Yam has been regarded by doctors of the past dynasties as a good product for "tonifying the lungs and kidneys" and has a certain effect on chronic cough, asthma and kidney deficiency and backache.The polysaccharides in its mucus can regulate immune function and help resist invasion by external pathogens.In addition, the saponins in yam have a mild stimulating effect on adrenal function and are suitable for people with weak constitution or recovering from surgery.

3. Produce fluid and nourish yin, assist in regulating blood sugar

Raw yam has a high water content, which can relieve dry mouth and tongue, and is suitable for people with yin deficiency.Recent studies have found that its active ingredients may delay sugar absorption by inhibiting α-amylase activity, which has certain auxiliary significance in blood sugar regulation.However, it should be noted that its effect is mild and cannot replace drug treatment.

Summary and eating suggestions

As a traditional nourishing food, raw yam has a wide range of effects but needs to be used rationally.It can be steamed, made into soup or juiced daily. It is recommended that the daily intake be controlled at 100-200 grams.People with spleen and stomach deficiency can use ginger to neutralize its coolness.It should be emphasized that although yam is rich in nutrients, individual differences are large. Special groups such as diabetics should consult a doctor before eating.

Quote sources:1. "Chinese Pharmacopoeia" 2020 edition 2. "Compendium of Materia Medica" by Li Shizhen of the Ming Dynasty 3. "Food Composition List" of the Chinese Nutrition Society