First of all, it is not advisable to start fitness after lunch 15 minutes, and then start fitness 30-60 minutes after meals, because blood is concentrated around the stomach after a full meal, and then fitness will concentrate blood on the working muscles, which will affect digestion and absorption; Fatigue after starting exercise is also due to insufficient blood supply to the brain, which leads to hypoxia of brain cells.

I suggest you eat normally at noon, mainly starchy food, and start fitness activities one hour after lunch. The fitness process should be gradual, so that the warm-up activities of the body start with slight sweating, and then gradually increase the intensity, choose appropriate fitness methods, pay attention to hydration before and after fitness, and arrange corresponding stretching exercises after fitness to relieve the fatigue of the body.

I hope it helps you!