Hello, patients with cold constitution, don't eat too much cold food to relieve summer heat. The coldness of food includes its coldness (such as bitter gourd and purslane) and low temperature when eating (such as frozen watermelon and ice cream). Patients with cold constitution should avoid eating it regardless of spring, summer, autumn and winter. Generally speaking, people with cold constitution will feel pale mouth, cold and warm, tepid limbs, more clothes than others, fear of air conditioning, physical discomfort after eating cold food, excessive urination, rotten stool, pale and fat tongue with teeth marks. If you can't tell the difference accurately, please ask an experienced Chinese doctor for help. From the perspective of traditional Chinese medicine, people with deficiency and cold constitution should eat less cold fruits such as watermelon and cantaloupe.