Question

Why do we get sleepy after eating?​

Answer 1

Blood flow to the small intestine “dramatically increases” after a person eats, says Dr. Tomonori Kishino, a professor of health science at Japan's Kyorin University. And as blood is pumped into the gut to fuel digestion, a corresponding drop in blood flow to the brain could trigger feelings of sleepiness, he says.

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#Hope it helps...

Answer 2

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We may feel sleepy after lunch, or after eating in general, is because our body requires energy to function and survive. We get this energy from our food, which is broken down through the digestive process and converted into fuel, or glucose, and then macronutrients provide calories (or energy) to our bodies. Our digestive system triggers all kinds of responses within our body.