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General description	Indigestible fibers with imunostimulatory effect.
Found	- shiitake, reishi and maitake mushrooms - yeast - barley - oats - algae
Anti-aging role	- lowering blood cholesterol (inhibits absorption) - inhibit absorption of glucose and lipids - slow food movement in digestive tract - slow defecation - reduces insulin resistance, dyslipidemia and hypertension - reduce appetite - boost immune system (stimulates macrophages) - stimulate hematopoiesis - antioxidants - release symptoms of chronic fatigue and physical and psychical stress - reduce allergy, common cold and flu symptoms - IV - boost immune system of patients with HIV and cancer
Deficiency symptoms	Not possible.
Therapeutic doses	- reduce appetite - 4-6 g/day - high cholesterol - 3-10 g/day in divided doses
Maximum safe level	Not established.
Side effects	Not recorded.
Interactions	- immunosuppressives
Other remarks	- beta - glucans are indigestible and high fermentative - bigger molecules of beta - glucan has a better activity - physiological effect of beta glucan is the result of their solubility and possibility to make a gel structure - beta - glucan is fermented by colon bacteria making short-chained fatty acids that stimulates greline releasing - there are beta (1,3), (1,4) and (1,6) glucans

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