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When taken at appropriate doses, vitamin B-12 supplements are generally considered safe. While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine.
People who eat meat or cereals fortified with vitamin B-12 are likely getting the recommended daily intake of 2.4 micrograms. Older adults may benefit from a daily supplement to prevent deficiency. Vitamin B-12 is not toxic so there are no concerns about an overdose. ###
Dosages for Older People. When you’re in your 60s you should officially start getting blood tests to test for vitamin B12 deficiency. Around this age, you should be getting around 2.4...
Optimal dosing of vitamin B12 varies by age, lifestyle, and dietary needs. The general recommendation for adults is 2.4 mcg. Older adults, as well as people who are pregnant and breastfeeding...
Cyanocobalamin injection is used to treat or prevent vitamin B12 deficiency caused by the following conditions: Addisonian (pernicious) anemia; Stomach or bowel problems; Worm infestation; Pancreas or bowel cancer; Folic acid deficiency. This medicine is to be given only by or under the direct supervision of your doctor.
Don't eat well or consume less than 1,600 calories a day. Are a vegan or a vegetarian who eats a limited variety of foods. Don't obtain two to three servings of fish a week. If you have difficulty achieving this amount, some experts recommend adding a fish oil supplement to your daily regimen.
Vitamin B-12 is one of the few vitamins Mayo Clinic experts routinely recommend for older adults. Vitamin B-12 plays a role in red blood cell formation, cell metabolism, nerve function and bone health.