After seeing a commercial on TV I told two friends that waiting one half hour before swimming was a myth. The comment from them was "are you nuts" I replayed that is a good example of an ol' wives tale. So I looked it up and found the below quote. at: HERE
An examination of the Royal Lifesaving Association’s Australian reports on drowning over the past few years gives no mention of lives being lost after eating. And neither the American Academy of Pediatrics, the United States’ Consumer Product Safety Commission, nor the American Red Cross offer any guidelines or warning related to swimming after eating.
And I said, "See I told you so"