Watermelon is cold and rich in various vitamins, but crabs are also cold. Eating crabs after eating watermelon is easy to cause gastrointestinal discomfort, diarrhea and abdominal pain, which is a mild food poisoning. Therefore, it is recommended not to eat crabs for 1 hour before and after eating watermelon, and vice versa.

Watermelon is nutritious and delicious, while crab is also very nutritious and delicious, but there are many taboos for them, especially crabs. Therefore, when eating crabs or watermelons, it is recommended to know the corresponding taboos first to avoid physical discomfort caused by food.