I have tried hydrogen peroxide, acidophilus and liquid chlorophyll. But none had the immediate effects that the activated charcoal had along with eliminating grains (accept flaxseed) from my diet.
I take 3 capsules a 2-3 hours before bed with a large glass of water.
One day, I was grocery shopping and was hungry so I decided to buy my favorite sushi at the sushi bar. I ate it then went to work and my breath smelled bad. I went to the bathroom and brushed my teeth, then tried to mask the odor with mint gum but it did not help. I realized then that the rice in the sushi was most likely the cause and eliminated rice from my diet.
It's been about a month now any my breath is much improved. I am thankful for the sushi incident because it pinpointed the rice as one of the causes for the bad breath. When I went back grocery shopping, I bought smoke salmon and ate it without any strong after affects.
I am blood type o + and my current diet consists of vegetables, meat, fish, poultry, fruit and flaxseed, which some might consider Paleo. I have eliminated dairy, wheat, and grains, (accept flaxseed). I hope that this information benefits someone.