"Although it comes as a surprise to many, the majority of research shows that aerobic exercise has only a minor effect on weight loss.
Some evidence for this comes from a review of several hundred weight loss studies conducted by Dr. Wayne Miller and colleagues at The George Washington University Medical Center [5].
The team examined 493 studies carried out between 1969 and 1994. Miller and his associates wanted to determine whether adding aerobic exercise to a low-calorie diet accelerates weight loss. Twenty-five years of weight loss research shows that diet and aerobic exercise provides only a very marginal benefit (in terms of weight loss) when compared to diet alone."
Christian Finn