The following appear to promote lung health: Indian gooseberries, exercise, garlic, broccoli, green tea, fruits & vegetables (see here, here, here). Homeopathy appears to be ineffective in the treatment of lung problems.
The following are thought to cause lung problems: artificial butter flavor, deep frying vapors, dairy, and arachidonic acid.
And the following have been associated with increased lung cancer risk: marijuana (see also here), cigarettes (see also here), processed meat, and frying bacon.
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