I've lost roughly 100 pounds in the past year - naturally - no surgery or diet pills. Just controlling what I eat, eliminating soft drinks (except 2 per week), moderate activity (moving instead of just sitting and doing nothing), etc. I've experienced a boost in energy and other benefits. Yes, it has proven true with me, the weight loss equaled at least another inch or two in visible length when erect (still a grower, no way near a shower), increased stamina, etc. It can be done, just takes patience and a little effort.