Is gatorade good for an upset stomach?

Depends on details: A simple tummy ache with symptoms like nausea, vomiting, or diarrhea, whether at home or traveling, may be from a virus infection, bacteria infection, or contaminated food. A typical normal, healthy person usually recovers easily. Taking a Pedialyte popsicle or 2-3 ounces of Pedialyte (or half-strength Gatorade) hourly, plus drinking or eating little else for 24 hours, may settle things down.