For Your HG: Garlic

I know a guy who takes odourless garlic pills; positively swears by their health giving properties.

He had a nasty smokers cough which does seem to have cleared up.

As I mentioned above Garlic contains Selenium and antioxidants (in its amino acids) .Selenium is one of the minerals in our body, which helps vitamins such C and E to fight the free radicals and prevent oxygination .Free radicals damage the DNA and the walls of the cells .While smocking the amount of free radicals increases ,which is why people who are smoking need additional amount of vitamins C ,E and the mineral Selenium than a non-smoker would .
This is why garlic had such effect against the cough .

References :
Natural Wonderfoods by Duncan Baird Publishers
My instructor for nutrition Katie Ferraro MPH (University of California San Francisco )