Radioactivity in Food

Brazil nuts, mineral water, bananas — what's really in our food and whether it's anything to worry about.

Brazil nuts contain up to 1,000 times more natural radium than other foods. What that means for your health.

Mineral water contains natural radionuclides like radium and uranium. Usually irrelevant for adults — what parents of infants should watch for.

Every food is a little radioactive — from bananas to wild boar. Why that's normal and where the exceptions are.