The taboo foods for eating sweet potatoes mainly include the following foods.

1. Sweet potatoes cannot be eaten with eggs. Eggs and sweet potatoes are both difficult-to-digest foods. Eating them together makes them even more difficult to digest. Eating them together can cause abdominal pain. Therefore, sweet potatoes cannot be eaten with eggs.

2. Sweet potatoes cannot be eaten with chicken. Eating sweet potatoes and chicken together has a certain impact on the gastrointestinal tract and can cause abdominal pain. Therefore, sweet potatoes cannot be eaten with chicken.

3. Sweet potatoes cannot be eaten together with crabs. Eating sweet potatoes and crabs together can easily cause stones in the body. Therefore, it is best not to eat roasted sweet potatoes and boiled crabs together, as some may suffer from diarrhea and some may even develop stones.