Like many people I eat too much, too quickly and eat too much sugary junk.
I certainly noticed a link between using my inhaler more after a food binge, especially with bad carbohydrates.
Thankfully I'm at the stage in life where I'm starting to take control and be responsible for my health. (it's never too late!)
Not once did a health professional or asthma nurse comment on weight gain/diet/sugar in relation to asthma and medication use - see my other post on breathing technique.