Serena Williams joins Ro as GLP-1 Celebrity Ambassador
The tennis icon partners with Ro to talk openly about weight, health, and the role of GLP-1 treatment
August 21, 2025 — Ro, the leading direct-to-patient healthcare company, today announced that Serena Williams—23-time Grand Slam champion, four-time Olympic gold medalist, and one of the most decorated athletes in history—has been using Ro to lose weight and is joining as a celebrity patient ambassador. Williams and Ro will lead a multi-year campaign to normalize the use of GLP-1 medications for weight loss and support others on their health journeys.
As part of the campaign, Williams is speaking out for the first time about using GLP-1 treatment to improve her health and help reach her weight goals after having kids. As a world-class athlete, entrepreneur, and mother, she’s no stranger to discipline and resilience. But when Williams’ body changed postpartum, and more time in the gym and healthy eating wasn’t helping her achieve those goals, she realized she needed additional support. Williams turned to Ro to access GLP-1 treatment, high-quality clinical care, and ongoing support.
“I trained at the highest level, ate a clean diet, pushed myself, and still, after having kids, my body just wouldn’t respond. I realized it wasn’t about willpower; it was biological. My body needed the GLP-1 and clinical support,“ said Williams. “I’m partnering with Ro because if I needed help as a top athlete doing everything at level 10, I know others are struggling too, and everyone deserves access to the treatment they need. This isn’t a shortcut. It’s healthcare.”
Williams’ and Ro’s partnership will focus on continuing to normalize, and promote open conversations around the role GLP-1s play in helping people manage their weight and take control of their health. Williams is starring in a national marketing campaign spanning digital, broadcast, and out-of-home that highlights her story and how Ro helps members like Williams achieve their health goals.
“By opening up about her own health, Serena is opening doors for millions of people who have felt shamed for needing support to lose weight,” said Zach Reitano, co-founder and CEO of Ro. “She’s redefining what it means to be strong, once again, by setting the example that strength can also mean seeking and using medication to take control of your health. We’re proud to be Serena’s care partner, and even prouder to stand with her as she inspires people nationwide to reach their health goals.”
This announcement builds on Ro’s mission to fight for patients and expand access to GLP-1 treatment through online doctor visits, personalized treatment plans, insurance coordination, education, and ongoing support. Weight management is also preventative healthcare. It follows Ro’s announcement in April of NBA legend Charles Barkley joining as their first GLP-1 celebrity patient ambassador. Together, these partnerships represent Ro’s commitment to reducing barriers, expanding education, and reimagining what healthcare looks like for millions of Americans.
To learn more about Ro’s weight loss offering, visit ro.co/weight-loss/serena.
Disclosure: Williams’ husband is an investor in Ro and serves on its board.
About Ro
Ro is a direct-to-patient healthcare company with a mission of helping patients achieve their health goals by delivering the easiest, most effective care possible. Ro is the only company to offer nationwide telehealth, labs, and pharmacy services. This is enabled by Ro's vertically integrated platform that helps patients achieve their goals through a convenient, end-to-end healthcare experience spanning from diagnosis, to delivery of medication, to ongoing care. Since 2017, Ro has helped millions of patients in nearly every single county in the United States, including 99% of primary care deserts. Visit Ro.co for more information.