Is there real evidence that eating more fruit and vegetables improves health?
Quick answer
Yes, and it is among the better-evidenced findings in nutrition. Meta-analyses of prospective cohort studies link higher fruit and vegetable intake to significantly lower cardiovascular disease risk and lower all-cause mortality.
This is one of the areas where the evidence is genuinely strong rather than suggestive. A large meta-analysis of prospective cohort studies found higher fruit and vegetable consumption associated with significantly lower risk of cardiovascular disease, with risk falling as daily intake rose. A separate pooled analysis of large cohorts found intake of roughly five servings a day associated with the lowest all-cause mortality. These are observational studies, so they establish association rather than proof of cause, but the effect is consistent across populations and study designs. The practical implication is simple: the barrier for most households is not knowing that vegetables are good, it is the daily friction of buying and prepping them, which is the problem we exist to remove.
โ ๏ธHonest Note: These are observational cohort studies. They show a strong, consistent association, not a controlled proof of causation โ and no vegetable delivery service can promise a health outcome.
๐ Supporting Research
Aune, D., Giovannucci, E., Boffetta, P., et al. โ International Journal of Epidemiology (2017)
Key Finding: Higher fruit and vegetable intake was associated with significantly reduced cardiovascular disease risk, with risk decreasing as intake increased.
Wang, D.D., Li, Y., Bhupathiraju, S.N., et al. โ Circulation (2021)
Key Finding: Around five servings of fruit and vegetables per day was associated with the lowest all-cause mortality risk.