What is contraindicated with Chinese yam (Dioscorea opposita)?
Jan 09, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Under normal circumstances, Chinese yam (Dioscorea opposita) is incompatible with red dates (Ziziphus jujuba), shrimp, persimmon, potato, banana, and other foods. Both red dates and Chinese yam are nourishing ingredients that possess certain greasy or sticky properties. If consumed in large quantities together, they may lead to excessive internal dampness, potentially causing indigestion, abdominal distension, and other symptoms. Individuals with weak spleen and stomach function should consume them in moderation. In daily diets, moderate combination of these ingredients generally does not cause significant adverse effects on health.
Generally, yam should not be consumed with red dates, shrimp, persimmon, potato, banana, etc. The detailed explanation is as follows:
1. Red Dates
Both yam and red dates are nourishing ingredients and have a certain greasy nature. If consumed in large quantities simultaneously, they may lead to excessive dampness in the body, causing indigestion, bloating, and other symptoms. Individuals with weak spleen and stomach should consume them in moderation.
2. Shrimp
Under certain conditions, vitamin C in yam may convert with pentavalent arsenic compounds in shrimp into toxic trivalent arsenic, which could be harmful to human health. Although such situations rarely occur in daily diets, attention should still be paid.
3. Persimmon
Yam contains a large amount of starch and dietary fiber, while tannic acid in persimmon may combine with these components to form indigestible precipitates, potentially causing gastric bezoars and resulting in discomforts such as abdominal pain and nausea.
4. Potato
Potato and yam are both starchy foods. Consuming them together in large amounts may lead to excessive starch intake, increasing the digestive burden on the gastrointestinal tract and potentially causing indigestion and rapid increases in blood sugar levels.
5. Banana
Bananas are cooling in nature, while yams are warming. Their properties oppose each other. Consuming them together may exacerbate conditions of spleen and stomach cold deficiency, especially for those with weak spleen and stomach function, easily causing discomforts such as diarrhea and bloating.
Although yam is incompatible with the above-mentioned foods, in daily diets, moderate combination usually does not cause significant health problems.
