Can Chinese yam lower blood sugar?
Aug 15, 2025
Source: Cainiu Health
Dr. Yu Yongchao
Introduction
Under normal circumstances, Chinese yam (Huai shan) cannot directly lower blood sugar levels, but as a common food ingredient, it may have a certain auxiliary effect on blood glucose control. It is important to consume it in moderation and combine it with other foods appropriately. Excessive consumption of Chinese yam may cause its starch content to convert into glucose, potentially leading to an increase in blood sugar levels. It is also recommended to substitute Chinese yam for some refined grains like white rice and flour to avoid additional carbohydrate intake.
Generally speaking, Chinese yam (Huai Shan) cannot directly lower blood sugar levels, but as a common food ingredient, it can play a certain auxiliary role in blood sugar control. It should be consumed in moderation and properly combined with other foods. The specific analysis is as follows:
Chinese yam is a commonly used ingredient that also serves medicinal purposes. It contains mucus protein, dietary fiber, and various vitamins and minerals. Among these components, mucus protein helps delay the digestion and absorption of carbohydrates in food, thus reducing the post-meal rise in blood sugar levels. Dietary fiber increases satiety and reduces the intake of high-sugar foods, thereby helping to maintain stable blood sugar levels. However, it's important to note that Chinese yam itself contains starch and is categorized as a staple food item, not a hypoglycemic food. It cannot replace antidiabetic medications, nor should one rely on Chinese yam alone to lower blood sugar levels.
Excessive consumption of Chinese yam may lead to increased blood sugar levels, as the starch it contains can be converted into glucose. When consumed, it is recommended to substitute it for part of the refined rice and flour in the diet, to avoid excessive additional carbohydrate intake. In daily life, maintaining stable blood sugar levels requires a balanced diet combined with regular作息 (作息 should be translated according to context; here it likely refers to "lifestyle habits" or "daily routine").
