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

A 44-year-old member asked:
Dr. Michael Bolesta
39 years experience Orthopedic Surgery
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
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A 39-year-old female asked:
Dr. PHILLIP KIM
14 years experience General Practice
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
A 52-year-old member asked:
Dr. Michael Kleerekoper
50 years experience Endocrinology
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
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A 45-year-old member asked:
Dr. Terri Washington
15 years experience Endocrinology
Does not matter: It does not matter when you take vitamin d, sometimes taking after food can help if it causes stomach upset.
A 44-year-old member asked:
Dr. Scott Welker
26 years experience General Surgery
No difference.: Steroids linger in your system for days, so taking it once or twice a day achieves the same effect.
A 46-year-old female asked:
Dr. Jessica Bocook
Specializes in Family Medicine
Yes: The daily recommended allowance is 1, 000 mg per day.
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A 36-year-old female asked:
Dr. Joseph Mathews
15 years experience Endocrinology
Kind of...: Type ii diabetes is a progressive disease, as the Insulin producing beta cells eventually go through apoptosis/cell death. So most people will need t ... Read More
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A 46-year-old male asked:
Dr. Tarik Hadid
17 years experience Hematology and Oncology
Yes: Yes it is safe but I am not sure it will be of any benefit in your case..
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A member asked:
Dr. Georgia Latham
34 years experience Family Medicine
Yes, take daily: if you are zinc deficient. There is no danger associated with taking zinc supplements on a daily basis nor known long term consequences. The body ne ... Read More
A 48-year-old member asked:
Dr. Richard Bensinger
51 years experience Ophthalmology
Yes but why?: Generally a multivitamin contains more than enough to supply your needs for the day. Taking it twice unless you have some unusual needs, simply is a ... Read More
A 30-year-old male asked:
Dr. Rex Mahnensmith
43 years experience Internal Medicine
Vit D: Take Vitamin D3. It is superior to D2. Take 5000 iu of D3 daily. 10000 iu is too much. Take 5000 iu daily for one week. Then drop to 2000 iu daily ... Read More
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A 53-year-old member asked:
Dr. Yash Khanna
56 years experience Family Medicine
YES IT IS SAFE: It is safe to take 1000 units a day.
A 27-year-old male asked:
Dr. Andrea Rodgers
27 years experience Emergency Medicine
Follow directions: Vitamin C is a water soluble vitamin and is not stored in the body like fat soluble vitamins, (A, E, D, and K) so it unlikely that you will overdose. ... Read More
A 42-year-old member asked:
Dr. Ankush Bansal
16 years experience Internal Medicine
No: No need - it's a waste. Just return to your daily routine.
A 53-year-old member asked:
Dr. Peter Karsant
38 years experience Dentistry
Vit D3: Vitamins are a supplement and should not be taken in large doses (tens of thousands of units) as some can be harmful in large doses. Some vitamins sho ... Read More
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A 38-year-old female asked:
Dr. Alvin Lin
Dr. Alvin Lin answered
29 years experience Geriatrics
Metformin: Metformin is a generic medication that's available in several different forms but essentially short & long acting. Check out epocrates.Com & drugs.Com ... Read More
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A 33-year-old female asked:
Dr. Jonathan Leibowitz
27 years experience Internal Medicine
Hardly...: ur multi likely has 400iu - less than 1% of 50,000iu. it wont matter. whats more important to know is that if ur an average size the 50,000 weekly ... Read More
A female asked:
Dr. Al Hegab
Dr. Al Hegab answered
39 years experience Allergy and Immunology
Yes: However, zyrtec should be only once a day, unless supervised by a doctor
A 37-year-old member asked:
Dr. Bennett Werner
43 years experience Cardiology
Yes and no: It comes in two formulations: 12 hour and 24 hour - clearly marked on the package. Take the 12 hour twice a day and the 24 hour once a day!
A 45-year-old male asked:
Dr. John Rhoades
47 years experience Family Medicine
Below: If it was given to you for this purpose, then it is fine. Propranolol can be used for anxiety associated with performance.
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A 41-year-old female asked:
Dr. Randy Baker
39 years experience Holistic Medicine
Safe to take 40,000!: There is no know "toxicity" to oral vitamin C though too much can cause loose stools. There is some concern that taking large amounts of Vit C on a lo ... Read More
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A 30-year-old male asked:
Dr. Martin Raff
55 years experience Infectious Disease
Vitamins: There is seldom any need to take vitamin supplements in the USA with a balanced diet, but if you do take them follow the directions and do not take mo ... Read More
A 58-year-old female asked:
Dr. Randy Baker
39 years experience Holistic Medicine
NO! 10,000 iu safe!: Most adults need to take 5000-8000 iu of vit d per day to achieve optimal blood levels of 50-80. One should not exceed 10, 000 iu/day without monitori ... Read More
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A 48-year-old male asked:
Dr. James Donley
53 years experience Dentistry
Once is sufficient: For most individuals, once a day is fine. If one has food traps between the teeth, then extra flossing to remove the food is good. Once a day thorough ... Read More
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