At the maintenance dose, YS Nutrition products cost an average of $1.00 per day. In comparison, many other nutritional supplements, including many that have no clinical studies to back their claimed benefits, cost far more. Consider that in both China and Japan, extracts of some of the medicinal mushroom varieties used in YS Nutrition supplements are sold as pharmaceuticals for use in such things as cancer treatment and these pharmaceuticals are very expensive. For example, ImmPower™, a mushroom supplement, costs $4 to $10 per day for the amounts necessary to treat serious illnesses. YS Nutrition products provide the body with much needed nutritional support at a relatively low cost.