(HealthDay News) -- In some cultures, eating raw fish is a time-honored tradition.

But some people are at greater-than-average risk of food-borne illness, and should avoid eating uncooked seafood, the U.S. Food and Drug Administration says.

Here's the FDA's list of people who should stay clear of sashimi or sushi that contains raw fish:

• Seniors.
• Very young children.
• Women who are pregnant.
• Anyone with a compromised immune system.
• Anyone with low levels of stomach acid.