Life Is food poisoning contagious? Here’s how it spreads and how to treat it July 25, 2022April 4, 2023Olivia Munson, USA TODAYComments 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.