How much vitamin D3 should we be taking?
The Mayo clinic reports:
I don't follow these recommendations. I take 5,000/10,000 IU's of vitamin D3 (which is converted to vitamin D in the body) every other day in winter and 5,000 IU's per day in summer. I do this to maintain a blood vitamin D level above 60ng/ml and below 80ng/ml. Some articles report levels above 60 are not good, some say above 80, some say above 100. There is no consensus. But I have learned that increasing vitamin D by itself without balancing with other co-vitamins is why this may be true:
At CML diagnosis my vitamin D level was 17 ng/ml. I hate to think how many years I lived this way. I would get colds and flu like clockwork. Not any more. Not since 2013 have I been "sick". Normal range is considered between 30-50 ng/ml. But this is to prevent Rickets. You should have your blood tested twice a year. Each person metabolizes vitamin D a little differently. Vitamin D in the amounts I take should also be taken with vitamin K2. The two vitamins work together. And overdosing on vitamin D is very difficult when sufficient levels of K2 are available. But vitamin D is fat soluble and will build up in the body if taken to excess. Testing is very important if you are going to supplement.
For normal health - 1,000 to 2,000 IU's per day is considered safe. I have CML cancer, so I don't follow the "normal" recommendations.
Diagnosed 11 May 2011 (100% FiSH, 155% PCR)
with b2a2 BCR-ABL fusion transcript coding for the 210kDa BCR-ABL protein
Sprycel: 20 mg per day - taken at lights out with Quercetin and/or Magnesium Taurate
6-8 grams Curcumin C3 complex.
2015 PCR: < 0.01% (M.D. Anderson scale)
2016 PCR: < 0.01% (M.D. Anderson scale)
March 2017 PCR: 0.01% (M.D. Anderson scale)
June 2017 PCR: "undetected"
September 2017 PCR: "undetected"