I have found differences in the units, but what I really mean is the differences in the chemistry & the indications. I know vit D helps preserve the Calcium in bones, but what other indications are for the diff types of vit D?
11 Dec 2009
German researcher Adolf Windaus first discovered 3 forms of vitamin D, which he called D1, D2, and D3. It was later learned that the vitamin D1 was a mixture of compounds rather than a pure vitamin D product, so the term D1 is no longer used.
The term "Vitamin D" now refers to several different forms.
The two forms important in humans are : ergocalciferol (vitamin D2) and cholecalciferol (vitamin D3). Vitamin D2 is a synthetic form (man made) and Vitamin D3 is the internal form that we make.
See: http://www.nlm.nih.gov/medlineplus/druginfo/natural/patient-vitamind.html - see notes under dosing for uses of different forms of vitamin D.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
The vitamin B-12 is known to be destroyed by stomach juices; why you are adding it with the other vitamins?
1 answer • 21 Feb 2010
Vitamins - I take 1200 mg of calcium and 1000 IU of vitamin D plus a multiple vitamin every day. Can I take magnesium and zinc with the other ...
1 answer • 9 Aug 2010
The prescription drugs I am presently taking are: Tamoxifen (20 mg/day), Effexor (75/day), Savella (50 mg-2x/day), and Vitamin D (50,000 iu/week). ...
1 answer • 7 May 2011
... I have no idea what my blood test results were, I just received a phone call and told to pick up my prescription and start taking 20,000 IU, 500 ...
2 answers • 22 Feb 2014