It certainly helped me a great deal. The doctor prescribed a large amount to take once a week for 20 weeks because most seniors suffer a deficiency. He did not mention anything about pain but before long I noticed the chronic pain had decreased. It is worth trying.
My doctor noticed low vitamin D numbers and has had me on 50,000 units per week.
I've been on them for close to half a year now. During my last workup my numbers are close to normal now and he thinks I'll be off it with another 3 months.