How many fruits and vegetables do I actually need per day?

Five portions of fruit and vegetables per day is the number that emerges most strongly from large-scale research. A meta-analysis of 26 studies involving nearly 1.9 million participants found a 13% lower risk of death at that amount compared with just 2 portions. The benefit for the heart was 12% lower mortality; the largest effect was seen for lung diseases, where the risk was 35% lower. More than 5 portions provided no additional benefit.

Not every portion counts equally. Fruit juice and potatoes were not associated with a lower risk of death in the same study, and the same applied to starchy vegetables such as peas and corn. The benefit came from regular vegetables and whole fruit. That distinction is practical: a glass of orange juice at breakfast counts differently from an orange.

What do 5 portions look like in practice? Think of roughly two pieces of fruit and three serving-spoon scoops of vegetables, spread throughout the day. Approximately 80 grams per portion is a commonly used benchmark. Berries and leafy greens are regularly described in research as beneficial choices, partly because of polyphenols, compounds that may have an anti-inflammatory effect.

Most people fall well short of those 5 portions. In American research, in 2019 fewer than 13% of people ate enough fruit and only 10% ate enough vegetables. A further problem is that well over half of the people who eat too few vegetables believe they are already eating enough. That makes improvement harder.

Concerns about substances in vegetables that might inhibit nutrient absorption, such as lectins or oxalates, are not a reason for healthy people to eat less. A review study concludes that the health risk from these substances at normal intake levels is negligible. Only in the case of specific medical conditions may it be worth being somewhat more cautious about them.