In many Eastern cultures, Shii-ta-ke mushrooms are an integral part of the daily traditional use for 2,000 years to boost general stamina. Shii-ta-ke edible wild mushrooms (growing on Shii-tree) contain naturally occurring a large spectra of nutrients, including precious natural polysaccharides compounds known as alpha and beta-glucan that enhance vitality, vigor and energy. Holistica is proud having been in the 80’s the first European company after the Japaneese Chihara team to develop a large know-how related to mushrooms polysaccharides and glyconutrients from concentrated edible shii-ta-ke mushrooms extracts and being able to develop a full spectrum of revitalizing polysaccharides formula that provide such energy boost effect not only to fight tiredness but to support so well immune system. Unlike green plants which produce many of their own nutrients via the sun’s energy during photosynthesis process and from soils, mushrooms primarily obtain their precious nutrients from wood matter where they grow on. Rich in enzymes, the shii-ta-ke mushrooms digest the wood fibers rich in rare healthy components as mannose, xylose and some others oses compounds, resulting in polysaccharides ( long chain sugars) with high level content in this shii-ta-ke mushroom extract. While unfortunately the majority of shii-ta-ke mushrooms produced worldwide are now grown on sawdust block in a non-natural setting, Holistica has studied many traditional substrates for his shii-ta-ke extract and never selects mushrooms growing on rice bags (used in «so-called» organic cultures) because rice is a substrate rich in glucose, and is the last sugar we could miss in our modern diet. Rice (even an organic one) is definitively not the natural substrate for shii-ta-ke mushrooms. That is one of the reasons why Holistica prefers natural wood substrate for its mushrooms selection and endemic origins than artificial organic method that are sometimes too far from the traditional and natural substrates. Although these shiitake mushrooms can be obtained from the usual diet, extracts with hot water are preferred form because the cell walls of the mushrooms are made up of a high percentage of an indigestible fibrous material known as chitin. It is difficult for humans to gain all the benefits from these nutrients unless they are processed in a precise manner to extract these nutrients and turn them into bioavailable compounds for humans. It is also recommended not eating raw shii-ta-ke or simple low-cost raw shii-ta-ke powder without the necessary extraction process, to avoid bad digestion of these compounds. If usual macronutrients are well known, some rare carbohydrates families, including alpha and beta polysaccharides compounds help to boost immune system and general vitality. As saturated fatty acids are in excess in modern food and unsaturated fatty acids are missing, refined and short chain sugars are also in excess but researchers have shown that long chain polysaccharides as alpha and beta glucans are missing. Many famous researchers have described Lentinan, KS2 and AC2P polysaccharides and alpha hexose natural compounds of shii-ta-ke mushrooms as promising nutrients for general well-being. They offer a real boost and deserve their well know status in traditional oriental medecine as an Elixir of Life. All together , all these natural vitamins associated to this Shiitake energy booster offer an amazing ally to cross seasons with a vigorous health and fight any pathogen that could occur in day to day life. Completed by evening multiminerals tablets, you'll have in hand in a single product all the balanced micronutrients your body needs for an optimal vitality.