The drug shrinks the fat around the torso and makes the waist smaller, but doesn’t change the fat on the arms, legs, or just under the skin — meaning it targets only the dangerous internal fat.

The drug doesn’t make you lose fat from your skin or your arms and legs — it only targets the fat deep inside your belly, which is the kind that’s most dangerous.

People who took the drug ended up with a smaller waist compared to their hips — a sign their body fat shifted from the belly to less dangerous areas.

A daily injection called tesamorelin helps HIV patients with a big belly lose nearly 11% of their dangerous internal belly fat in six months, while those getting a fake shot don’t lose any.

This injection makes the waist smaller without changing fat on the arms, legs, or just under the skin.

Tesamorelin only targets dangerous belly fat in HIV patients, leaving other fat stores like arms and legs unchanged.