The claimWhat Serena actually said
In an Essence interview, Williams said she began eating mostly plant-based years ago after her sister Venus changed her diet following a Sjogren's diagnosis. She added that she is not 100% plant-based but felt more energetic, not deprived, after cutting back on animal products.
- essence.com: Serena Williams in their own words
- Kim H et al., Journal of the American Heart Association, 2019, higher adherence to a healthy plant-based diet was associated with lower CVD and all-cause mortality over a 25-year follow-up.
- Quek J et al., Frontiers in Cardiovascular Medicine, 2021, meta-analysis of 410,085 adults found plant-based dietary patterns associated with lower cardiovascular mortality and CVD incidence.
Why it mattersWhy this matters for longevity
Diet quality is one of the most modifiable levers for long-term heart and metabolic health.
'Plant-based' covers everything from beans and greens to fries and soda, so the label alone does not guarantee a benefit.
The evidenceWhat the science says
In the ARIC cohort and a pooled meta-analysis of more than 400,000 adults, higher adherence to healthy plant-based diets tracked with lower cardiovascular and all-cause mortality.
These are observational associations, unhealthy plant-based diets high in refined carbs do not show the same benefit, and the extra energy she describes is subjective and not measured in the trials.
TakeawayThe honest takeaway
The practical lesson
Shifting most of your plate toward minimally processed plants is a reasonable, evidence-aligned bet for long-term heart health.
RelatedRelated habits
Each of these is a habit you can build on its own. Explore them through the Topics index.
SupplementsThe supplement angle: Protein, vitamin B12 and iron
Support a habit, do not replace one
People eating mostly plants can still meet their needs, but it is worth watching protein, B12, iron and omega-3 intake; a dietitian can help tailor this rather than guessing.
Supplements can support good habits. They do not replace sleep, movement, nutrition, or medical care. Talk with your healthcare provider before starting anything new.
This is educational commentary, not medical advice, and does not imply that Serena Williams endorses, is affiliated with, or uses Winning Longevity or any product. We critique the claim and the evidence, not the person. Any direct quote is a placeholder until sourced. Talk with a qualified healthcare provider before changing your routine. See our health disclaimer.
