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A 25-year-old female asked:

i have heard to take vitamin d and calcium supplement together. is it really bad if i do not? because i only take vitamin d with vitamin c.

1 doctor answer3 doctors weighed in
Dr. William Simon
Integrative Medicine 32 years experience
Vitamin therapy: Vit D is a fat soluble vitamin so it is best absorbed with a high fat meal and levels seem to do better if taken with supper. Vit C is water soluble and therefore excreted if you take too much at one time. Taking both together would probably decrease absorption of both so should be taken at separate times. Calcium would be better absorbed taken with Vit C since it is an acid

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Canada
A 22-year-old female asked:

Is it really important to take vitamin d and calcium supplement together? What if you do not is it serious? But i take vitamin c and vitamin d together is this okay?

1 doctor answer1 doctor weighed in
Dr. Milton Alvis, jr
Preventive Medicine 41 years experience
Vitamins combined in: all foods, beware lots of untrue promotions. If vitamin D3 (crucial to enable both calcium absorption from food & the bone forming cells to form bone; + other issues) concentrations are upper normal, e.g.70-80 ng/ml, then rarely even need Ca beyond within food. ↑ vitamin C rarely of any value for people living in 1st world countries; Lookup: "Linus Pauling & Vit. C"; actual evidence using Google.

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Last updated Aug 10, 2020
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