Even if the old food was causing occasional upset stomachs, a fast switch from one to the other could double your trouble so it is best to switch gradually. (dogfood.co)
Occasional digestive problems are no fun - occasional upset stomach, gas, bloating, or diarrhea are uncomfortable and can be embarrassing. (amazon.com)
These tasty bitters may be enjoyed as an aperitif, a digestif, and may calm the occasional upset stomach. (mountainroseherbs.com)