Glucose is a primary energy source for all plants and animals, and is absorbed into the bloodstream quickly. Very few people are deficient in glucose. Most people are getting too much glucose in their diets, primarily from poor nutritional sources. Glucose (in the right form) enhances memory, stimulates calcium absorption and increases cellular communication. Mushrooms are an excellent source of glucose. Mushrooms contain a compound called beta-glucan which is a long-chain polysaccharide containing glucose with proven health benefits.