Exercise may trigger overeating in people trying to lose weight Many people increase their physical activity when attempting to lose weight, but doing so may result in accidentally sabotaging one’s self, according to a new study from the Technical University of Munich. The researchers found that after exercising, participants were more likely to eat a greater quantity of food and to seek immediate snacking. Getting regular physical activity is important for one’s health, of course, and often helps those who are dieting to shed weight. However, the new study has found that if you’re not careful, you may end up eating too much food shortly after exercise compared to times when you’re at rest, potentially sabotaging your progress.