Low carb lifestyles are the healthiest, easiest and most effective way to lose weight and reverse metabolic disease in most people. That is a scientific fact.
Every randomized controlled trial (follow the numbered links if you enjoy reading research papers) on low-carb lifestyles shows that they:
Reduce body fat more than calorie-restricted low-fat diets. (1).
Low carb diets are also easier to stick to, probably because they don't require you to restrict calories and be hungry all the time. More people in the low-carb groups make it to the end of the studies (15, 16).
Stay informed! Stay healthy!