Tech Insider
Sima Sistani is the CEO of WeightWatchers
Sima Sistani, who stepped down Friday, helped push WW International to embrace weight-loss drugs.
Tech Insider
A man before and after losing a substantial amount of weight.
August Miller, left, at 434 pounds and, right, at 271 pounds today.
Tech Insider
oprah Winfrey
Oprah Winfrey is best known for her talk show "The Oprah Winfrey Talk Show."