Hi, I am 68 years old and have 3 daughters in their 30's. They all have a "genetic" Vitamin D deficiency. I just got tested and was told that 30-100 was normal, mine is 8. I was receciently been diagnosed with Osteoporisi. I have had undiagnosed artheritis for several years. I also have food sensitivies discovered abut 6 months ago. Once I eliminated those foods, I felt so much better and lost 50lbs. Is it advisable to have benetic testing befor I just start taking pills for this? I eat yougurt everyday, and usually vanilla ice cream and lots of cheese.