Is watermelon considered “cooling” or “heating” in nature?

Generally speaking, watermelon is considered a “cool”-natured fruit in traditional Chinese medicine (TCM), and moderate consumption is recommended.

From the perspective of TCM, watermelon possesses properties such as clearing internal heat, relieving summer-heat, promoting salivation, and alleviating thirst—effects closely linked to its “cool” nature. During scorching summer days, people often experience symptoms like internal heat, thirst, and excessive sweating; consuming watermelon at such times can rapidly alleviate these discomforts, imparting a refreshing and comfortable sensation—precisely reflecting the regulatory role of “cool”-natured fruits on the human body. Moreover, watermelon promotes diuresis, helping the body eliminate excess heat and metabolic waste, further demonstrating its heat-clearing properties.

However, due to its “cool” nature, certain populations should consume watermelon with caution. For instance, individuals with deficiency-cold of the spleen and stomach may experience weakened digestive function, indigestion, abdominal pain, or diarrhea if they consume excessive amounts. Similarly, women with weak constitutions or cold uterus, as well as infants and young children, should avoid overconsumption to prevent adverse effects on health.