London: A new study has found that extreme exercise may not help in reducing weight, in fact, it may do the opposite.
According to the study, 50 percent of the people who run a marathon for the first time actually put on weight, instead of ditching those extra pounds, the Daily Express reported.
Several people taking part in marathons said that they were thinner after completing the race than when they started their training, however, nearly 55 percent of people said that they were heavier, even if they were in better shape physically.
According to the results of the study by diet firm Forza Supplements, extreme exercise is not the best way to lose weight.
Forza Supplements managing director Lee Smith said that fitness fans think that when they take up running, they will lose weight easily and believe that they be able to lose that weight while eating anything they want.
However, Smith added that running doesn't burn as many calories as people believe as they tend to overestimate the caloric output and underestimate the caloric input.