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15. Brazil Nuts
Maybe you have heard that one of the richest sources of selenium out there is Brazil nuts… If not, keep in mind that one Brazil nut packs more than 150% of the recommended intake for selenium. However, this depends vastly on their growing conditions.
But no matter what brand of Brazil nuts you choose, all studies suggest that a high selenium intake helps protect against lung cancer, boost respiratory function, and promote better immune function by enhancing antioxidant defenses.
Important info: Do not exaggerate with Brazil nuts! Since they are concentrated sources of selenium, it’s best to eat no more than two nuts per day.
16. Swiss Chard
This dark leafy green contains high amounts of magnesium. This important mineral helps guard against inflammation in the body, and when it comes to lung health, it helps prevent airway restriction.
The higher magnesium intake, the better the lung function in numerous studies worldwide. Additionally, low magnesium levels are often associated with severe symptoms in COPD patients.
So, if you’re suffering from COPD, Swiss chard could be particularly beneficial for you.