I stopped drinking soda, and...
I thought it would cut down the amount of sugar and caffeine I was consuming. It's been a few months, and now if I try to drink soda I get bad stomach cramps, gas, and a headache. I used to basically only drink soda, especially dark colas, for years and years, but now carbonated drinks are just plain unappealing. Once in a while I'll have a Coke if I go out somewhere nice, but for the most part, it's tea, milk, or water for me. Guess I can safely say I kicked the habit.
Years ago, during my first year of college, I stopped drinking soda and switched to milk with every meal. I lost ten pounds by the end of that year. This time, I'm gaining weight. It isn't a problem now (unless you ask the bmi chart, but that thing lies) but it will be in about twenty years. Both sides of my family are prone to obesity, especially the women and especially around middle age, so I'm trying to start getting into healthier habits while I'm still young, so that hopefully I can keep those healthy habits further into adulthood and avoid post-menopausal obesity and the effects it has on health. It only gets harder to stay healthy the older one gets, as I understand it, so I figure the best time to start is now. So far, soda down. Up next, actually eating vegetables.