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Serena Williams’s Diet Overview
Serena Williams spent two decades winning 23 Grand Slam singles titles on a body built for power — 5 ft 9 in, thick through the shoulders and legs, and famously strong. But in August 2025, the Serena Williams story stopped being about serve speed and started being about GLP-1 medication. She told People she’d been using a GLP-1 since 2024 and had dropped 31 pounds after months of training and eating clean did nothing.
Her situation was specific. After giving birth to her second daughter, Adira, in August 2023, she was running, lifting, and playing tennis — and the scale wouldn’t move. She said her joints hurt and she couldn’t get back to the weight where she felt like herself. She eventually started treatment through Ro, the telehealth company (her husband Alexis Ohanian is an investor, and she’s since become a public face for the brand). That disclosure made her the default name people type in alongside “GLP-1 diet plan.”
Here’s the part that actually matters for anyone copying her: Serena has been loud about not losing muscle. She’s a lifelong athlete who knows what happens when you crash-diet — the strength goes first. Her eating on the medication has leaned heavily protein-first, which is the standard clinical recommendation for anyone on semaglutide or tirzepatide. She hasn’t published a meal-by-meal plan, so what follows blends what she’s shared in interviews over the years with the protein-forward template registered dietitians build for GLP-1 patients.
What Serena Williams Eats in a Day
Breakfast
Serena’s long-standing breakfast is a green smoothie — spinach or kale, banana, berries, and a plant protein base. On a GLP-1, that smoothie has to carry more weight than it used to, because appetite drops hard in the first few hours after dosing. Expect 30–35g of protein in the glass: two scoops of protein powder, or Greek yogurt blended in. Liquid calories go down easier than solid food when nausea is a factor.
She’s also mentioned eggs and oatmeal on training mornings. Three eggs plus a half-cup of oats is 25g protein and steady carbs.
Mid-Morning Snack
Something small and protein-dense. Cottage cheese, a hard-boiled egg or two, or a protein shake if breakfast was light. GLP-1 users who skip these mini-meals routinely end the day 50g short on protein.
Lunch
Grilled chicken with rice and vegetables is Serena’s plainest go-to — she’s talked for years about chicken and rice as her competition fuel. Portion-wise on a GLP-1, that’s a 5–6 oz chicken breast, a smaller scoop of rice than she’d have eaten mid-career, and greens. Salmon shows up often too.
She’s also had long vegan stretches. In 2012 she went raw vegan in support of Venus, who was diagnosed with Sjögren’s syndrome, and she’s called herself a “chegan” — a cheating vegan. Lentils, chickpeas, and tofu still turn up in her rotation.
Afternoon Snack
Fruit with nut butter, or a handful of almonds. She’s admitted she’s not a natural vegetable person, so the fruit habit does a lot of the fiber work.
Dinner
Tacos. Genuinely — Serena has called tacos her favorite food for years and made Taco Tuesday a running thing. The GLP-1 version is chicken or shrimp, corn tortillas, black beans, avocado, salsa, and she stops when she’s full instead of finishing the plate. That last part isn’t discipline; it’s what the drug does.
Other nights: salmon or steak with roasted sweet potato, or her mom’s cooking when she’s home.
Evening / Before Bed
If protein came up short, a casein shake or Greek yogurt. She has her own wine label, Wyn, and she’ll have a glass — though alcohol tolerance drops noticeably on GLP-1s, something she’s not the only user to mention.
Diet Rules and Principles
Protein first, every meal. That’s the whole framework. Clinical guidance for GLP-1 users sits around 1.2–1.6g of protein per kilogram of body weight to protect lean mass, and for someone Serena’s size that’s 90–130g minimum.
She’s never been a rigid dieter. Early in her career she was honest about bad habits — skipping meals, then eating one huge one. That’s exactly the pattern that backfires on a GLP-1, where total intake can quietly drop to 900 calories and muscle starts disappearing. Her fix has been structure: smaller meals, more of them, protein anchoring each one.
She keeps resistance training in the mix. Weight loss without lifting on these medications means up to 40% of what you lose can be lean tissue. Serena’s whole identity is strength, so that’s non-negotiable for her.
Supplements
Serena hasn’t detailed a full stack. What’s known: she uses protein powder (plant-based during her vegan phases), and she’s discussed iron, since female endurance athletes are commonly low. Standard for GLP-1 patients and likely in her routine — vitamin D, B12, magnesium, and fiber, because reduced food volume means reduced micronutrients. She’s also spoken about hydration constantly; GLP-1s slow gastric emptying and dehydration makes the nausea worse.
Cheat Meals and Indulgences
French fries. She’s admitted repeatedly that fries are her weakness, along with fried chicken and her mother’s cooking. She doesn’t pretend otherwise. Wine from her own label counts too. The GLP-1 hasn’t eliminated those — it’s shrunk the portions, which is the point.
Estimated Daily Macros
| Nutrient | Amount |
|---|---|
| Calories | ~1,700 kcal |
| Protein | ~140g |
| Carbohydrates | ~145g |
| Fat | ~60g |
Expert Verdict
The eating template here is solid and copyable — high protein, real food, three meals plus two snacks, no banned food groups. Anyone could run it.
The medication is a different conversation. GLP-1s are prescription drugs with real side effects, and Serena has a financial relationship with the telehealth company she used. She also said plainly that diet and exercise weren’t working for her, which is a clinical scenario, not a shortcut. If you’re considering it, talk to a doctor — and if you do start, lift weights and hit your protein. That part isn’t optional.
Frequently Asked Questions
How tall is Serena Williams?
Serena Williams is 5 feet 9 inches tall (175 cm). That makes her about five inches taller than the average American woman.
How much does Serena Williams weigh?
Serena Williams weighs approximately 154 pounds (70 kg). Her powerful, muscular build has long been considered one of the most athletic frames in women’s tennis.
How old is Serena Williams?
Serena Williams was born on September 26, 1981, in Saginaw, Michigan, making her 44 years old. She is a Libra.
What is Serena Williams’ net worth?
Serena Williams’ net worth is estimated at around $300 million as of 2026. Her fortune comes from prize money, endorsements with Nike and Gatorade, and her venture capital firm Serena Ventures.
Who is Serena Williams married to?
Serena Williams married Reddit co-founder Alexis Ohanian in November 2017. The couple have two daughters, Olympia and Adira.
What is Serena Williams best known for?
Serena Williams is best known as one of the greatest tennis players of all time, winning 23 Grand Slam singles titles — the most in the Open Era. She retired from professional tennis after the 2022 US Open.
What does Serena Williams eat to stay in shape?
Serena Williams follows a largely plant-based, mostly vegan diet built around raw vegetables, leafy greens, quinoa, lentils and green smoothies. She combines it with on-court drills, sprint work and resistance training.
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Last Updated: September 18, 2026 | Source: Healthy Celeb
