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Suggested dosages. The recommended daily intake (RDI) for vitamin B12 for people over 14 is 2.4 micrograms (mcg) ( 1 ). However, you may want to take more or less, depending on your age, lifestyle ...
The bottom line. B12 is an important nutrient that is popularly used as a nutritional supplement, even by those without a B12 deficiency. Though doses of up to 2,000 mcg of vitamin B12 are ...
Synthroid is available in 25-microgram (mcg) strength intervals, as follows: 25 mcg, 50 mcg, 75 mcg, 100 mcg, 125 mcg, 150 mcg, 175 mcg, and 200 mcg. ... (mg). One milligram is equal to 1,000 ...
In the metric system, a microgram or microgramme is a unit of mass equal to one millionth ( 1 × 10−6) of a gram. The unit symbol is μg according to the International System of Units (SI); the recommended symbol in the United States and United Kingdom when communicating medical information is mcg. In μg, the prefix symbol for micro- is the ...
Vitamin B12 is important to maintain the health of your metabolism, blood cells, and nerves. Serious vitamin B12 deficiency may result in a low number of red blood cells ( anemia ), stomach ...
Age 19-50: 1,000 mg/day; Women age 51+: 1,200 mg/day; Men age 71+: ... 1,000 mcg/day This applies only to synthetic folic acid in supplements or fortified foods. There is no upper limit for folic ...
Side Effects. When taken by mouth: It is likely safe for most people to take folic acid in doses of no more than 1 mg daily. Doses higher than 1 mg daily may be unsafe. These doses might cause ...
The current recommendations suggest consuming 400–800 IU (10–20 mcg) of vitamin D per day. However, people who need more vitamin D can safely consume 1,000–4,000 IU (25–100 mcg) daily.