Just found this information about Agaricus Bio available at MotherNature.com …

Atlas World USA is proud to offer an immune enhancing dietary supplement composed of our U.S. grown Agaricus blazei mushroom. The human immune system, comprised mainly of tissues and cells defends the body against diseases. More specifically, Natural Killer cells or NK cells play a critical role in neutralizing outside organisms that enter the body.Agaricus Bio capsules were formulated by our team of experts, scientists and physicians to enhance your health. The primary ingredient of the Agaricus Bio is the Agaricus blazei mushroom, which has been found to have a positive effect in strengthening and increasing Natural Killer cells in in vitro studies.We believe that all four stages in the life cycle of the Agaricus blazei are beneficial to your overall health and have designed the first such product, which utilizes the full life cycle of the Agaricus blazei.Our Agaricus Blazei is U.S. grown with top-quality control and state-of-the-art technology which results in a consistent and superior mushroom product.Agaricus blazei contains powerful immune stimulants called beta- 1,3 / 1,6 -glucans, polysaccharides (chains of sugar molecules formed together to make up complex sugars) known to enhance the body's immune system.Over 30 years of research on the Agaricus Blazei Mushroom in Japan, Brazil and in the U.S. has shown the Agaricus Blazei to be effective in strengthening the immune system.In 1995, Dr. Mamdooh Ghoneum, Ph.D., from King Drew Medical Center of UCLA, found that the Agaricus mushroom increases the total number of all immune cells within the body. In addition, he discovered that the Agaricus not only increased the number of NK cells, but also made each individual NK cell more powerful.

We'd love to hear more about the IP-6 component of Zak's treatment. What dosage and brand?

SmartBomb had this to say about Source Naturals IP-6 Powder (400 grams) …

IP-6 (inositol hexaphosphate) is a component of certain dietary fibers, particularly most cereal grains, legumes, and seeds high in oil. Many researchers believe some of fiber's health benefits may be due to the antioxidant, immune-enhancing, and cardiovascular-supporting activities of IP-6.

House of Nutrition says the following about Physiologic's IP-6 …

IP-6, inositol hexaphosphate, is a natural compound found in the fiber of common cerals, nuts, and legumes, including oats, wheat, rice, soy, and corn. Because IP-6 is phosphorylated (addition of phospate group, PO) in all six positions of the carbon ring, it has the potential to bind and form complexes with carions ( a positively charged ion) IP-6 is, as well an antiozidant. The IP-6 in this product is dervied from rice bran.Note: Pregnant or nursing women should consult a doctor before using any product.Directions: For adults, take (2) capsules twice daily, between or before meals. Best taken on an empty stomach, or follow the advice of your health care professional.Ingredients per 2 capsules: Inositol Hexaphosphate 1020 mgOther ingredients: Cellulose (Plant Origin), Gelatin, Silica, Vegetable Magnesium Stearate.