Then, how soon after eating can you swim?

30 minutes

Furthermore, what are the consequences of exercising too soon after eating? It depends. For many people, exercising strenuously on a full stomach can lead to reflux, hiccups, nausea and vomiting, said Dr. Daniel Vigil, health sciences associate clinical professor at the University of California, Los Angeles.

Likewise, does eating before swimming cause cramps?

The idea, apparently, is that eating right before swimming can trigger a stitch or muscle cramp — and in the worst-case scenario, these cramps can cause someone to drown. But there’s no evidence to suggest that eating then swimming would cause either of these any more often than any other activity.

Why do you cramp in water after eating?

The theory is that the process of digestion increases blood flow to the stomach — away from the muscles needed for swimming — and leads to cramps, which increase the risk of drowning.