Can I eat watermelon after eating lamb?
It is generally acceptable to eat watermelon after consuming lamb, though moderate consumption is recommended.

Lamb is warm in nature and rich in protein, fat, and various vitamins and minerals; watermelon is cool in nature and contains large amounts of water and sugar. Their nutritional components do not conflict. For healthy individuals, lamb and watermelon can be consumed together in moderation, but excessive consumption should be avoided to prevent indigestion.
Moreover, the cooling nature of watermelon can somewhat balance the warming nature of lamb, preventing potential adverse effects caused by excessive heat or cold properties in food. Meanwhile, the water and dietary fiber in watermelon can promote intestinal motility, aiding digestion and absorption of lamb. If you wish to consume both lamb and watermelon, it is advisable to leave an interval between their consumption—for example, wait for a while after eating lamb before consuming watermelon, to reduce irritation to the stomach and spleen.
Both lamb and watermelon should be consumed in moderation to avoid placing excessive strain on the body. Individuals with spleen and stomach deficiency cold or weaker gastrointestinal function should be cautious about consuming lamb and watermelon together to avoid triggering discomfort.