The claimWhat Kyrie actually said
Speaking during his first season with the Celtics, Irving described moving to a plant-based diet and said his energy, sleep and mental clarity had all improved. He credited the Netflix documentary What the Health with changing how he viewed eating meat. He attributed part of the effect specifically to no longer consuming GMOs and pesticides.
- thescore.com: Kyrie Irving in their own words
- Dinu M, Critical Reviews in Food Science and Nutrition, 2017, meta-analysis of observational studies found vegetarian and vegan diets associated with lower ischemic heart disease incidence and lower total cancer incidence
- Quek J, Frontiers in Cardiovascular Medicine, 2021, systematic review and meta-analysis found greater plant-based diet adherence associated with lower cardiovascular disease and all-cause mortality
- Craddock JC, International Journal of Sport Nutrition and Exercise Metabolism, 2016, comparison of vegetarian and omnivorous diets found no significant difference in physical performance outcomes
Why it mattersWhy this matters for longevity
Plant-forward eating is one of the few dietary patterns with consistent long-term outcome data behind it, so it is worth separating from the reasoning attached to it.
Attributing benefits to GMOs and pesticides moves attention away from the parts of the pattern, fiber and displaced processed meat, that the evidence actually points to.
Athletes eating fully plant-based need to plan for vitamin B12, iron, and adequate protein rather than assume the diet handles it.
The evidenceWhat the science says
Meta-analyses of observational cohorts consistently associate vegetarian and vegan diets with lower rates of ischemic heart disease and lower cardiovascular and all-cause mortality, and a large pooled analysis found the same direction for overall plant-based dietary patterns.
The evidence does not support a performance or cognition advantage. A comparison of vegetarian and omnivorous athletes found no significant difference in physical performance measures, and there is no meaningful trial evidence that removing GMOs or pesticide residues improves energy, sleep or mental clarity. Self-reported improvements after any deliberate diet change are also confounded by the other things that usually change at the same time, including eating less processed food and paying more attention to sleep.
TakeawayThe honest takeaway
The practical lesson
Move the plate toward vegetables, legumes and whole grains for the cardiovascular evidence, and plan B12 and iron if you go fully plant-based.
RelatedRelated habits
Each of these is a habit you can build on its own. Explore them through the Topics index.
SupplementsThe supplement angle: Vitamin B12, iron and omega-3
Support a habit, do not replace one
Fully plant-based diets reliably lack vitamin B12 and can run low in iron and long-chain omega-3s. These are worth discussing with a clinician and checking on bloodwork 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 Kyrie Irving 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.
