Via Keto Michel Cymes achieve a calorie deficit on a constant basis. To lose weight the smart way while staying healthy and balanced, the goal is to eat clean, combine resistance training with aerobic exercise to strengthen your cardiovascular system and maintain muscle mass. Due to the many benefits that Metamucil brings to the table, Natural Inclination has to admit that it would definitely be good as a fat burning supplement. Absolutely, probably worse than some of the pills and fads out there. But to determine if Metamucil will definitely work as a weight loss supplement, one must first consider what its main purpose is.