what happens if you eat expired yogurt

Eating expired yogurt can cause gastrointestinal upset and food poisoning or foodborne illness. Harmful microbes can slowly grow in yogurt, causing foodborne illness if ingested. If you eat yogurt thats been opened and gone bad, it could cause a foodborne illness and leave you with diarrhea, stomach cramps, abdominal cramping, vomiting, and dehydration. If your yogurt is on the vintage side but comes from an unopened container, it may just upset your stomach a bit. However, if its bad enough to bother your belly, itll probably taste off enough that you wont want to eat it. Spoiled yogurt can be relatively harmless, an off-putting sour taste as the good bacteria within it slowly continue to ferment lactose into lactic acid. However, spoilage can also make yogurt unsafe to eat. The only guaranteed way to consume yogurt safely is to follow the USDA policy of throwing out what you havent eaten after two weeks. Therefore, it is best to check the expiration date before consuming yogurt and not consume it past the expiration date.