Will there be a reaction if I drink orange juice while eating crab?
Generally, drinking orange juice while eating crabs does not cause adverse reactions, but moderation is important. The detailed analysis is as follows:

Crabs are a common seafood ingredient, and orange juice is a popular fruit beverage. There is no clear incompatibility between the two. From the perspective of food properties, they can usually be consumed together. Crabs are rich in high-quality protein and minerals, while orange juice contains abundant vitamin C and water. When consumed together, they provide various nutrients and enhance the dining experience, typically without causing discomfort. However, excessive consumption may lead to problems—crabs are considered cooling in nature and could burden the gastrointestinal system, while the fruit acids in orange juice might irritate the stomach and intestines, potentially causing bloating or diarrhea. In particular, due to the relatively high sugar content in orange juice, overconsumption may lead to elevated blood sugar levels. Therefore, it's important to control portion sizes.
Eating large amounts of crab or drinking orange juice on an empty stomach may irritate the gastric mucosa and cause stomach discomfort, especially for individuals with weak spleen and stomach functions who should be particularly cautious. In daily life, it's essential to develop healthy eating habits, reasonably combine various ingredients, and maintain good health.