06/01/2026
You can't exercise yourself out of a bad diet.
A study following 100,000 participants over 30 years found that physical activity does not counteract the increased cardiovascular risk associated with consuming sugar-sweetened beverages. People who consumed more than two sugar-sweetened beverages per week had a higher risk of cardiovascular disease regardless of how much they exercised. Daily consumption pushed the risk even higher.
This is consistent with what I've observed in practice for years. Exercise is one of the most powerful health interventions we have, but it operates through different mechanisms than diet. It can't undo the metabolic consequences of chronic sugar consumption. The two are not interchangeable.
I've often said you can't supplement yourself out of a bad diet. The data now suggest you can't exercise yourself out of one either.
The implications are worth sitting with. For anyone using exercise as a license to consume sugary drinks regularly, the research doesn't support that trade off.