It is best not to exercise immediately after eating. If you exercise immediately, food will be converted into most of the fat, not the nutrients needed by the human body.

Standing after a meal can only have the effect of not stretching meat. If you want to lose weight, you'd better go jogging or brisk walking.

Sitting before eating will not increase fat in theory, but it is easy to accumulate fat. It's better to sit less and stand more.