First, I drink every day, at least two glasses of water with chlorophyll (you can get that at any health food store, I use at least two tablespoons per glass, but be careful, it really stains if you drop it). To some people it might taste like drinking grass, but I actually love the taste, and it's an incredibly good internal deodorant. Also, I don't eat meat, which putrefies in your body, and that smell has to go SOMEWHERE.
I don't use anti-perspirant, but I use a few spritzes of good coloqne under my arms. The heat release the scent, and people love it. I don't use it anywhere else, I live in a very hot climate, in the California desert, and people always comment on how good I smell when they come very close to me.
I do admit I'll wear anti-perspirant if I go out and it's hot and I'm wearing an expensive fitted shirt...