lose weight

"Most people who lose weight regain it," said Glenn Gaesser, professor at Arizona State University and co-author of the study.

Experts warn complications can be worse if drugs are abused, either to lose weight quickly or bought from unregulated sellers.

The popularity led to sky-high prices, supply shortages and, in some cases, desperate measures by those seeking to lose weight.

Gay was recently quoted saying that losing weight helped her realize that body positivity was “a big lie.”

People taking these drugs typically start to lose weight within a few weeks.