Carbon Diet

joincarbon.com

Jenny Craig

parent coNorth Castle Partners

jennycraig.com

LeBootCamp

regionSan Francisco, California

lebootcamp.com

Medifast Weight Control Centers

parent coMedifast

medifastcenters.com

Smart for Life

smartforlife.com

Unimeal

unimeal.com

Weight Watchers (WW)

regionNew York, NY

weightwatchers.com