Doctor insights on:
How Much Vitamin B12 Should You Take
A blood test showed that i'm B12 deficient. Serum B12 level of 186 pg/ml, should I take vitamin B12 supplements?
B12: this low will likely cause dementia, spinal cord degeneration and peripheral neuropathy. Keep your level above 550 for the rest of your life. Recovery takes about a year in a young person. I suggest you take liquid sublingual weekly for 3 months then bi weekly thereafter. Its important to check a level after you cut back to twice a month. Use 1 1/2 dropper and hold it under the tongue for 30 sec. ...Read moreSee 1 more doctor answer
Depends: It depends on how deficient you are. Usually 2000mcg/day is recommended. Taking a form that is under the tongue is better absorbed. Balance with a b-complex. Consider shots if your blood levels are below 500. ...Read more
See your doctor: Colchicine or Colcrys can decrease the absorption of B12 on occasion which can lead to neuropathy and anemia. Have your doctor check your B12 level in order to determine how much you need. However; B12 is a water soluble vitamin---what you do not need will pass in the urine. ...Read moreSee 1 more doctor answer
Daily requirement 3.: Daily requirement of vit B12 for us population is 3.4 mcg at your age and you are probabely getting that in your diet at your age.It is required for red cell formation and neurological functions and its deficiency can cause anemia and neurological problems.It is found in poultry, eggs, milk&milk and fortified breakfast serials.Older people&those on acid suppression meds need supplement 1000 mcg dail. ...Read more
No harm.: You pee out what is not used! ...Read more
What is the max daily dose of vitamin B12 an adult female with very low levels can take? If her face is flushed is she taking too much?
Interesting question: Adults generally need 2.6 micrograms b12/day. To replace deficiencies, im shots bypass gut absorption problems that can contribute to deficiency in the first place. 1, 000 micrograms of intramuscular cobalamin can be given once/day for 10 days, then once/week for four weeks, followed by once/month for life. Sublingual b12, 500-1000mcg/day. The form of B12 (cobalamin) may be important; see comment. ...Read moreSee 2 more doctor answers
No: It's very safe. If you are taking it as an oral supplement, be sure you are able to absorb it by this route -- many people who are deficient cannot. Your physician knows how to tell. Best wishes. ...Read more
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