A close up of a woman injecting medication into the skin of her stomach.
Online versions of weight-loss drugs are often scams or pose a serious risk of contamination or overdose, new research suggests.
  • Weight-loss drugs are expensive, so many people are buying cheaper versions online.
  • A researcher at UCSD bought weight-loss drugs online and tested them.
  • His results underscore why people are risking dangerous side effects by taking gray-market drugs.

Ever since the FDA approved the prescription of GLP-1 weight-loss drugs, it's been hard to get hold of the real thing.