Olives also contain oleuropein, a compound that can irritate some sensitive tummies. Think of it as the “spicy cousin” of the olive family.
For certain people, this compound triggers a “nope, get it out” reaction. And diarrhea is your body’s dramatic way of saying, “I am done with this snack.”
Are You Lactose Intolerant? (Hint: Olives Don’t Have Lactose)
But they’re sometimes stuffed with cheese or anchovies. If you’re lactose intolerant, that stuffed olive is a tiny Trojan horse of dairy misery.
Check the label. If it says “blue cheese,” your gut might just send you an eviction notice.
Are Olives Bad For Diarrhea at Frank Duke blog
