9 Foods to avoid when your tummy hurts – #8 can kill you!

6. Foods high in acid

Citrus fruits along with tomato-based products (tomato is technically a fruit and contains a lot of acid) have the potential to cause acid reflux, Dr. Chutkan says.

This applies to citrusy fruit juices as well. So while apple juice would probably be fine, orange juice isn’t the best choice.

Other fruits tend to be fine, she adds.