Turkey Tail mushrooms are very nutrient-dense, with each serving containing 18 amino acids, including high levels of tryptophan, copper, zinc, and selenium. Researchers have found turkey tails to be particularly effective in fighting respiratory problems, indigestion or ulcers, diabetes, cancer, and arthritis. turkey tail mushroom powder is ground turkey tail mushrooms that make them easier to consume. turkey tail mushroom powder is best eaten at breakfast with scrambled eggs or at lunch on top of rice dishes.