Health Insurance

I went to the Nutritionist today only to discover that my insurance wouldn't cover the visit or anything else associated with the service. I'm not going to complain too much because they've paid for everything else. Tens of thousands of dollars of expenses from the sleep study, to the surgery, to the chemotherapy. I'm very lucky. But it strikes me odd that as soon as I try to get preventative medicine or treatment, I get turned down. The nutritionist would have probably cost about $1,000 over time, if that... I was just looking for some guidance. The first visit was probably $100. The results would be even more valuable. Imagine how much less I'd cost them if I was healthy and physically fit with professional supervision? I'm sure they have their reasons. It's just disappointing.