Interesting topic and I have a similar experience. This past winter, my husband became very very sick AGAIN with a cold/flu. He gets the same virus every year at the same time. It takes him about 3 weeks to get healthy again and during those three weeks, he coughs, hacks, sneezes and breathes all over me -- especially at night. I continue to eat Primal and take my supplements daily and I have never yet succumbed to the same virus. I have asked my hubster if he would consider taking similar supplements and eliminating 100% wheat to which he replies: Supplements are unregulated. OKAY --- I don't push the conversation anymore than that but hello ---- who's the one getting sick EVERY SINGLE CHRISTMAS???!!! Anyway, all you can do is encourage and show love, and let hubster make his own decisions.
I've never taken supplements prior to Primal, but I do find being on them to be a big advantage --- I mean, I feel so much better on supplements and of course, I make bone broth weekly and have a cup of that almost daily. I believe that the combination of these lifestyle changes is helping to keep me healthy and happy. :-)