Let's be real. Most people come to the gym so they can look better naked. For many people -- the so-called "skinny fat" demographic -- that's going to mean gaining muscle mass to improve their figure and lower their body fat percentage. For others that are legitimately overweight or obese, a BMI over 30, they need to also lose bodyweight to reduce their adipose tissue. Strength training is a great start for those folks, but it's not the end, and they need to make dietary changes as well.