Swimming right after eating is generally not recommended for several reasons:

1. Digestive Process: Eating triggers the body’s digestion process, which involves the release of enzymes and stomach acid to break down food. Swimming requires the body to work harder, diverting blood flow to the muscles and away from the digestive system. This can slow down the digestion process and potentially lead to discomfort.
2. Stomach Discomfort: Swimming with a full stomach can lead to cramps and discomfort. The contracting muscles needed for swimming can put pressure on the stomach, which may cause pain and make swimming unpleasant.
3. Choking Risk: Swimming with a full stomach increases the risk of aspiration, which is when food or liquid enters the airway and lungs. This can be particularly dangerous in deep water where rescue is more difficult.
4. Energy Diversion: After a meal, the body’s energy is often prioritized towards digestion. Engaging in strenuous activity like swimming can take away from the energy that should be going towards digestion, which might not be the best for your body’s overall metabolism.
5. Safety: It’s generally safer to wait until you’ve digested your food before swimming, as swimming with a full stomach can increase the risk of drowning if you experience stomach discomfort or cramps.

It’s a good idea to wait for at least 30 minutes to an hour after a light meal before swimming, and even longer after a heavy meal. This gives your body enough time to start the digestion process without the risk of stomach discomfort or other issues while swimming.