“Wait a half hour after eating before you can safely go swimming” is an almost universally accepted idea. The myth involves the possibility of suffering severe muscle cramps and/or drowning from swimming on a full stomach. But while it’s true that the digestive process diverts the circulation of the blood toward the gut, and to a certain extent, away from the muscles, an episode of drowning caused by swimming on a full stomach has never been documented. Bottom line? Go with this advice from the Red Cross: “Use common sense about swimming after eating.”
Source: Nemours, U.S. Food
