Low carbohydrate diets do cause weight loss, much of which is water, stored liver glycogen, lean tissue, and fat. Any diet that has fewer calories than a person usually eats will result in weight loss. The problem I have is that 97% of people who have lost weight on low carbohydrate diets re-gain their weight once they achieve their goal weight and resume their usual eating habits. Healthier eating habits were not learned during the weight loss process due to eating something vastly different than they usually eat. Low carbohydrate is not a long-term weight loss solution.
I base my answers on current research. When research substantiates that low carbohydrate or any other type of diet is a successful long-term in helping people achieve and maintain a healthy weight, then I will reconsider. Until then testimonials have no place in my recommendations to consumers.