Claim: "If you've been exposed to the stomach flu," you can avoid getting it if you "drink 3 glasses of 100% grape juice a day for 3 days. It changes the acidity in your stomach. ...This really works!!"
Fact-check: No scientific proof that grape juice fights off stomach flu
Verdict: false
Organisation: PolitiFact
Author: Tom Kertscher
Date published: 2020-01-14T00:00:00