If you drink a lot of diet soda, it goes hand in hand with diarrhea. Both sugar substitutes and the caffeine in diet soda are known to have laxative effects.

Medically reviewed by Allison Herries, RDN Key Takeaways Mushroom coffee can upset your stomach, cause jitters, dizziness, or poor sleep.Some mushrooms may harm your kidneys or liver.It can interact ...