You probably don't think much about your lungs until you climb a steep set of stairs. Breathing is one of those things that just happens, until something changes. For many people, what sits on the plate quietly makes a difference.
A 2025 review in the journal Nutrients looked at how diet shapes lung health. It concluded that eating patterns rich in fruits, vegetables, fiber, and omega-3 fats are tied to better lung function and a lower risk of chronic lung disease such as COPD and asthma.
What the research actually links to healthier lungs
Tomatoes are rich in lycopene, a plant pigment with antioxidant effects. A 10-year study of 680 adults in the European Respiratory Journal found that eating more than two tomatoes a day was linked to a slower decline in lung function. The effect was strongest in former smokers.
Apples carry flavonoids such as quercetin. The same European study found that higher apple and banana intake was tied to a slower drop in FEV1, a standard measure of how much air you can push out of your lungs in one second.
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Fatty fish like salmon, mackerel, and sardines supply long-chain omega-3 fatty acids. The 2025 Nutrients review notes that these fats help calm airway inflammation by shifting the body toward resolving-type signaling molecules called resolvins and protectins.
Leafy greens such as spinach and kale deliver vitamin C and flavonoids. The review highlights vitamin C's role in protecting lung tissue from oxidative stress, a key driver of damage in COPD, asthma, and acute respiratory infections.
Whole grains and legumes bring fiber. The 2025 Nutrients review ties higher fiber intake to better lung function and lower inflammation across the airways.
Berries sit alongside apples and tomatoes in the same flavonoid-heavy group. An earlier feature review in Nutrients from 2015 grouped them with other fruits in the pattern linked to lower asthma symptoms and better airway function.
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Nuts and seeds, including walnuts and flaxseeds, round out the list. They supply plant-based omega-3 fats, magnesium, and vitamin E. The 2025 review notes that magnesium helps relax the smooth muscle in the airways, which may make breathing easier.
Food is one piece of lung health, not a replacement for medical care. Anyone with ongoing coughing, shortness of breath, or an existing lung condition should talk to their doctor about what works alongside treatment.
The Mediterranean pattern covers most of them
Taken together, these foods are the building blocks of a Mediterranean-pattern diet. The 2015 Nutrients review describes it as fruit, vegetables, whole grains, beans, nuts and seeds, with fish and olive oil in regular use.
Research links that pattern to fewer wheezing and asthma symptoms in children and adults.
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This article is made and published by Jesper Bengtson, who may have used AI in the preparation.