Triple Chlorophyll and activated charcoal. I've also heard going vegetarian can make a difference as your digestive system generates specific enzymes to break down meat, which marks you as a predator.
I know the chlorophyll and activated charcoal work to reduce the bodies waste scent, at least to my nose. I live on a sailboat and use a porta potti, so I know for a fact. It also makes a noticeable difference in armpit and foot odor.
I don't believe it's possible to completely eliminate our smell, but if it can be "diluted" the deer just might not be as alerted that it's fresh, as in that you are there now. I know a good beagle knows a fresh rabbit scent from an old one. Most deer are familiar with human scent and I'm sure they know when you're close, or were around in the recent past.
Anyway, only the deer know for sure about all that, but I do know that the things I mentioned do drastically reduce our scent, so I'll pop a chlorophyll pill and mix a bit of activated charcoal powder in my milk daily starting before the season until it's over, along with the usual methods of handling hunting clothing and personal hygiene. Then, most importantly, I'll play the wind and pray for good luck!