A new Harvard Chan School study shows it’s the quality—not quantity—of macronutrients that make a difference for heart health, debunking myth that modulating carbohydrate and fat intake alone is inherently beneficial.
Quite right, and this is the problem with correlational studies like that linked: they’re observational. We can’t do controlled studies on humans, so we try very hard to control for confounds.
There can be many more factors influencing lifespan than just diet, though.
Quite right, and this is the problem with correlational studies like that linked: they’re observational. We can’t do controlled studies on humans, so we try very hard to control for confounds.