Voodoo, it is like a playoff beard. Why change your lucky underwear. ETC. Wind is the key to scent control, scent lok may work but the slogan "forget the wind, just hunt" is marketing. Seen it! Heck I have had deer come downwind side without scentlok...not many but has happened.

I would hazard to say your buddies diet has less to do with it, than knowing the area and the animals he his hunting!

As far as breath, if he is that close, your busted or an arrow is in the bread basket. In otherwards, they smell all of you not your breath.

But if it makes you feel more confident...then go for it. All up top!