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Is it better to take vitamin d once or twice a day

A 19-year-old female asked:
Dr. Robert Kwok
Pediatrics 35 years experience
That's a HUGE dose: People usually take 400, 800, 1000, or 2000 units of vitamin D each day. For people who have very low levels of vitamin D, they can take 50,000 units ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old member asked:
Dr. Michael Bolesta
Orthopedic Surgery 42 years experience
Depends: It varies by age from about 200 international units (0.005 mg) to 600 iu per day, but that may be too low if you are not exposed to the sun much. More... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 31-year-old female asked:
Dr. PHILLIP KIM
Family Medicine 17 years experience
Depends: Really depends on whether or not there is deficiency. As a supplement for osteoporosis prevention 800iu daily should be adequate. Otherwise any defi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Daniel McGee
Family Medicine 18 years experience
It depends: The institute of medicine sets recommended dietary allowance(rda) at 600 iu for people ages 1-70 with safe upper limits for daily intake ages 9 & abov... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Frederick Singer
Endocrinology 60 years experience
Vitamin D intake: Vitamin d intake depends on what the level of serum 25ohd is in the blood. The average normal person should take at least 1000 u of vitamin D3 daily.
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
Dr. Michael Kleerekoper
A Verified Doctoranswered
Endocrinology 53 years experience
Vitamin D: One tablet a day, purchased over the counter at 1000 or 2000 units per tablet and neither is expensive. My wife and I each take the 1000 and are just... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 38-year-old member asked:
Dr. Terri Washington
Endocrinology 18 years experience
Does not matter: It does not matter when you take vitamin d, sometimes taking after food can help if it causes stomach upset.
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. Thomas Namey
Rheumatology 50 years experience
If not deficient...: I recommend between 2000iu of d3 to 5000iu of d3 per day. I take 5000iu! however, with serious deficiency you may need 50k iu of prescription d2 twi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old female asked:
Dr. Albert Pizzo
Family Medicine 62 years experience
Vitamin D: Depends on many factors e.g. Age, amount of skin exposed to sun rays daily, use of sun blockers, time of day that skin is exposed, race, location, and... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old female asked:
Dr. Kenneth Merriman
Orthopedic Surgery 49 years experience
NO: In usa all d you can get otc is d3 i usually recommend 1000 iu per 25# body wt therefore 100 # person would take ~ 4000 iu/day go to vitamindcounci... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 31-year-old member asked:
Dr. Jose Barreto
Physical Medicine and Rehabilitation 16 years experience
Check other sources: First you should visit your doctor for an evaluation. Then, depending on your current vitamin d level and medical situation, take vitamin d accordingl... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 17-year-old male asked:
Dr. Michael Kleerekoper
A Verified Doctoranswered
Endocrinology 53 years experience
Vitamin D: If you are African-American you rarely need vitamin D. If you are non-Hispanic white you don't need vitamin D during late spring and summer but later ... Read More
Created for people with ongoing healthcare needs but benefits everyone.