Most of your Immune support system is in the blood. Foods that are high in D help absorption of calcium and maintain structural support of the body. It can be found in powdered form as well as liquid ready to serve bottles. So is giving lifestyle and wellness advice, speaking knowledgeably about herb-drug-nutrient interactions, and teaching wellness. Unfortunately, like hydrolyzed protein, most of the beneficial sub-fractions are lost in the process and chemicals are involved.