I was lucky to have a doctor who tested me for Vitamin D deficiency - and I was (severely deficient I mean) so I bought this book to tell me more and what to do about it.

I think the deficiency was the product of my own carefulness about sun tanning, but I was also a victim of statin medication because the deficiency was highlighted after I spent a summer out of doors gardening and building.

The book has given me a very good idea of why I feel better after having prescription Vitamin D (random aches and pains have disappeared) and how I should get the sun next year.

In case any reader of this review feels I am unfair to statins, 70% of people on statins who complain of muscle pain prove in fact to be Vitamin D deficient.