By: Jennifer Frediani, PhD
However, the reduced fat diet led to significantly larger body fat loss. While this study is the most modern, well-controlled study that has been published it does not answer the practical question you may be asking…Should I go back to low fat? The reduced fat diet in this study was an 85% reduction from the baseline diet, providing only 7.7% of calories from fat. This is an extremely low fat diet that is not likely to be maintained except under these strictly monitored conditions. We do not know whether liberating the fat content to a more feasible level will have the same effect. On the other hand, the carbohydrate reduction diet was only a 60% reduction from baseline.
My opinion is that this boils down to personalized medicine. Everyone is different! Some people have a family history of insulin resistance and diabetes and therefore may benefit from following a low CHO diet for weight loss. Others may not have this sensitivity and do well on a low fat diet. The consensus that I gather from these two studies are that 1) researchers are finally getting to the root of the problem and more research is undoubtedly coming and 2) finding healthy lifestyle changes that reduces calories and increases physical activity that you can maintain indefinitely will result in weight loss.