Lean System 7 was recently evaluated in an eight-week randomized, double-blind, placebo-controlled clinical trial (the 'gold standard' of studies).

Those using Lean System 7 faired exceptionally well compared to those in the placebo group who followed the same exercise and nutrition plan. Some subjects using Lean System 7 showed an increase in basal metabolic rate (BMR—the body's fat-burning mechanism) up to 43%, which equates to burning an extra 930 calories per day.