Does drinking longan water cause heatiness?

Mar 25, 2025 Source: Cainiu Health
Disease description:

Recently, I heard that drinking longan tea is good, so I started drinking it every day. However, my throat has been dry and sore for the past couple of days, and I've also developed mouth sores. Could this be due to excessive internal heat caused by drinking longan tea? Does anyone know what's going on?

Doctor's answer (1)
Dr. Zhang Xiuhong

Generally, drinking longan water may cause heatiness, so it is important to consume it in moderation.

Heatiness typically refers to an internal imbalance of yin and yang, leading to symptoms such as dry mouth, sore throat, and oral ulcers. In traditional Chinese medicine, longan is regarded as a warm-natured and sweet-tasting ingredient that can nourish the heart and spleen and enhance blood and vital energy. It is often used in cases of physical weakness and anemia. Due to its warming properties, excessive consumption or long-term intake of longan water may cause heat-related symptoms, such as oral ulcers and constipation, especially in individuals with a naturally heat-prone constitution.

Therefore, when consuming longan water, it is important to follow the principle of moderation and avoid excessive intake. Additionally, one should consider their individual body constitution to determine whether longan water is suitable. If an individual has a heat-prone constitution or a tendency toward heatiness, consuming longan water may lead to an overaccumulation of internal heat, resulting in symptoms such as dry mouth, sore throat, and constipation. In such cases, cautious consumption is advised.

In daily diet, it is important to maintain dietary diversity and balance, avoiding excessive intake of any single food item to support overall health.