To all of you who take DE, how long does 1lb last you? 15 days? 1 month? 'Cos I'm trying to find food grade DE and I can only find 1 source so far in my country(shipping from US would be too expensive!). And I'd like to plan in advance.
Also, is DE suitable for people who've lung issues(bronchitis)? I don't really want to choke on the powder.
I really apologise for the recent barrage of questions.