Vitamin B12, also known as cobalamin, is essential for the formation of red blood cells and DNA, as well as the proper functioning and development of brain and nerve cells¹². It is naturally found in animal foods but can also be added to foods and is available as a dietary supplement, often in the form of cyanocobalamin, methylcobalamin, adenosylcobalamin, or hydroxycobalamin³.

The body requires a relatively small daily amount of Vitamin B12, with the Recommended Dietary Allowance (RDA) for adults set at 2.4 micrograms per day[^4]. Given that a segment of the older population may struggle with the absorption of naturally occurring vitamin B12, individuals over 50 years are advised to obtain their RDA through fortified foods or supplements[^4].

Vitamin B12 powder supplements can be particularly useful for those who have dietary restrictions or absorption issues that prevent adequate intake through food alone. It is important to ensure the powder is measured correctly to meet the required intake and to consider any underlying health conditions or medications that might affect absorption or interaction³.

Footnotes

1. Harvard Nutrition Source ↩

2. Office of Dietary Supplements ↩

3. NCBI Bookshelf ↩ ↩²