Does eating too many fresh walnuts cause internal heat?

Eating too many fresh walnuts may cause heatiness, especially when consumed in excessive amounts. According to Traditional Chinese Medicine (TCM), walnuts are warm in nature and have functions of nourishing the kidneys, consolidating essence, moisturizing the intestines, and relieving constipation. However, excessive intake may easily lead to accumulation of internal heat, thereby triggering symptoms of heatiness such as dry mouth, sore throat, or oral ulcers. From the perspective of modern medicine, fresh walnuts are rich in oils and calories; overconsumption may increase the burden on the gastrointestinal system, causing indigestion or endocrine disorders, which can further lead to symptoms resembling heatiness. Consuming fresh walnuts in moderation is beneficial to health, but attention should be paid to controlling the intake amount.

To avoid heatiness caused by eating fresh walnuts, it is recommended to limit daily consumption to no more than 5 to 8 nuts and to consume them together with other light foods to balance the diet. If mild symptoms of heatiness occur, drinking more water and appropriately increasing intake of vitamin C-rich fruits, such as oranges or kiwifruit, may help alleviate discomfort. If symptoms persist or worsen, timely dietary adjustments should be made and medical advice should be sought.