I think when it becomes chronic, it's a lot harder, my mother and sister have had chronic back pains mostly all their life, I heeded that as a warning already as a teen that I was probably at high risk for the same, and have tried to exercise regularly and to not eat too unhealthy. I've always used multi vitamin and mineral supplements, despite the statistics are not too good for that, and about 10 years ago I started taking fish oil in triple dose. Maybe vitamin D was just the missing piece for me, and I was lucky to find out before it was too late. My story is of course anecdotal, but it is also perfectly in line with some of the research that has been done on vitamin D for the past 10-15 years. The reason I mention fish oil is that both my mother and sister have both dieted heavily towards avoiding meat and fat, and I suspect that to have been actively harmful. Essential fatty acids are now known to be crucial for our health, particularly for brain and nerves, and they are both diagnosed with MS now.