Solaray Beta Glucan & Vitamin CIndication: Solaray Beta Glucan & Vitamin C is a powerful immune support formula combining beta glucan, an insoluble fiber derived from bakers yeast, with vitamin C, a potent antioxidant. This synergistic blend is designed to promote healthy immune system function, support digestion, and enhance overall wellness. Beta glucan is known for its ability to maintain balance and vitality, while vitamin C provides additional antioxidant protection. How to