Can eating sugarcane cause heatiness?
Under normal circumstances, moderate consumption of sugarcane does not cause heatiness (excess internal heat according to traditional Chinese medicine). However, excessive intake may lead to heatiness. The analysis is as follows:

In most cases, moderate consumption of sugarcane does not cause heatiness. Sugarcane juice is rich in water content and contains vitamin C and B-complex vitamins. It has effects of clearing internal heat, promoting production of body fluids, moistening the lungs, and relieving coughing. Normally, moderate consumption of sugarcane during the dry autumn and winter seasons can help replenish body fluids, alleviate thirst, and is generally beneficial and harmless to the body.
Although sugarcane has a cooling effect on the body, excessive consumption may place an additional burden on individuals with a naturally heat-prone constitution or those prone to heatiness, and could potentially cause symptoms of heatiness. Some people may experience symptoms such as dry mouth and tongue or mouth ulcers after consuming large amounts of sugarcane.
When eating sugarcane, it is important to chew slowly and thoroughly to avoid excessive chewing that may damage the oral mucosa.