Virtually no one has heard of beta glucan yet its rumoured to be replacing many conventional antibiotics in the near future its already being given to some cancer patients in high doses both in the uk and abroad and is one of the only products in the world known to fight both viral and bacterial infections beta glucan is a natural product derived from brewers yeast as well as certain mushrooms oats wheat and barley this uk produced version is exceptionally well priced and comes in 200