What are the best ways to supply immunity during a winter season. What vitamins or minerals do you take?

It depends. I truly recommend you to go to doctor and consult with real professional. As for me, I take omega, vitamin d3 and iron. Also, I like CBD oil . It helps me from stress and bad mood. When I take it, I feel energetic and positive. Sometimes I give it to my kids. This is a great natural product!