[Nine taboos on eating watermelon in summer] 1. Don’t eat too much watermelon; 2. Eat a small amount of frozen watermelon in moderation; 3. Don’t eat it with mutton; 4. Don’t eat it before or after meals; 5. People with diabetes Eat with caution; 6. Patients with oral ulcers should not eat too much; 7. People with renal insufficiency should eat with caution; 8. Fasting in the early stages of a cold; 9. Pregnant women should eat with caution.