If anything, the chlorophyll should improve your breath and body odor. If it's making him stink, that makes me think tainted batch, which makes me think....serious health problems on the way if he doesn't stop taking it immediately. The only effect it has on my body odor, is it makes my pits smell like that Primal Defense supplement, if you've ever smelled it. It's an earthy, clean scent. I like it. Yes, earthy....and clean....yes I know how that sounds.