By Annika Kim Constantino and Ashley Capoot, CNBC
For Gray Beard, a kindergarten teacher in Charlotte, North Carolina, losing weight had become a grueling task. She'd tried five different programs in her life and never found lasting results.
Her luck started to change last year, when she saw a promotion on Instagram for the Ro Body Program, a new offering from online health startup Ro. The ad said eligible patients could get prescribed GLP-1s, the buzzy class of obesity treatments that's turned into a booming business in recent years.
