Can I eat watermelon after eating tiger prawns?
Generally speaking, it is safe to eat watermelon after consuming prawns, but moderation is advised. Detailed analysis is as follows:

Prawns are rich in protein and trace elements, while watermelon contains abundant water and vitamins. After eating prawns, one can usually continue to consume watermelon. Their nutritional components complement each other and generally do not cause adverse reactions. Consuming both can replenish essential nutrients and help strengthen the body's constitution.
However, both prawns and watermelon should be consumed in moderation. Excessive intake may burden the gastrointestinal system, as the high protein content in prawns combined with the high water and fiber content in watermelon could lead to discomforts such as abdominal pain and bloating.
When consuming prawns and watermelon, adjust the quantity and time interval based on your own physical condition and how you feel. It's important to maintain a diverse diet, properly combine different foods, and consume more fresh vegetables and fruits to meet the body's various nutritional needs, thus promoting overall health.