While most of the nutrients found in our colorful whole food supplements will support immune health, there are some super star foods and nutrients in the immune health arena. Medicinal mushrooms have been found to be particularly helpful in supporting healthy immune function* – Liver Strength^™ and Maitake Gold 404^® are highly recommended.  Recent studies on Vitamin D3 have revealed a powerful connection between this hormone precursor and the ability of the body to resist disease.  MegaFood offers Vitamin D3 in potencies suitable for the entire family. Quercetin Strength^™ is also a popular immune supportive supplement, particularly during allergy season.