Life Is food poisoning contagious? Here’s how it spreads and how to treat it July 25, 2022April 4, 2023 Olivia Munson, USA TODAY Comments Off on Is food poisoning contagious? Here’s how it spreads and how to treat it Food poisoning is infectious, but not always contagious person to person. Food poisoning can come from exposure to an infected person's bodily fluids.