Watermelon and lobster can be eaten together, but pay attention to moderation. Watermelon and lobster are both food. Each 100 grams of watermelon contains 26 kilocalories of energy, 4532 micrograms of lycopene, 87 milligrams of potassium, 6 milligrams of vitamin C6, 18 milligrams of lysine and other nutrients. Each 100 grams of lobster contains 18.9 grams of protein, 121 mg of cholesterol, potassium 257 mg, chlorine 292.98 mg, vitamin B₄ 70.3 mg, lysine 1745 mg and other nutrients. Watermelon belongs to the fruit, rich in minerals and vitamins, lobster belongs to aquatic products, rich in protein. Eating watermelon and lobster together can play a role in balancing nutrition and provide energy for the body. However, excessive consumption may cause indigestion, abdominal pain, diarrhea and other discomforts, which is not conducive to good health. Watermelon and lobster can be eaten together, but pay attention to moderation, and those who are allergic to lobster should not eat lobster.