It very much depends on the type of food poisoning. Some start as soon as an hour after consumption; others, up to 10 days later[1].You're more likely to be able to idenify things like spoiled seafood soon after the fact. But if you have to wait a week or more?t very much depends on the type of food poisoning. Some start as soon as an hour after consumption; others, up to 10 days later[1]. You're more likely to be able to idenify things like spoiled seafood soon after the fact. But if you have to wait a week or more?
1 Keyes, James, Pioneers of Scioto County: Being a Short Biographical Sketch of Some of the First Settlers of Scioto County, Ohio, (Portsmouth, Ohio: J. Keyes, 1880).  Gargiulo, Barbara Keyser, Scioto County, Ohio: As Extracted From Henry Howe's Historical Collections of Ohio, (Milford, Ohio: Little Miami Pub.
Ohio County Profiles. Prepared by the Office of Research. Columbiana County. Named for: Christopher Columbus. Established: Act - May 1, 1803. 2015 Population: 104,806. Land Area: 532.5.