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Left untreated, a vitamin B-12 deficiency can lead to anemia, fatigue, muscle weakness, intestinal problems, nerve damage and mood disturbances. The recommended daily amount of vitamin B-12 for adults is 2.4 micrograms (mcg). Most people can get enough vitamin B-12 in the foods they eat.
Learn about the possible side effects of cyanocobalamin, the active ingredient in Vitamin B12, such as allergic reactions, gastrointestinal problems, and cardiovascular issues. Find out how to report side effects to the FDA and get professional information.
Learn about the possible side effects of taking too much vitamin B12, such as diarrhea, itching, and nausea. Find out how to prevent and treat too much B12, and when to see a doctor for serious complications.
Learn about the possible side effects of taking too much vitamin B-12 supplements, such as nausea, headache, and blood clots. Find out how to avoid or treat these symptoms and when to...
Vitamin B12 is an essential vitamin found in foods such as meat, fish, and dairy. It can also be taken as a supplement for various conditions, such as deficiency, cyanide poisoning, and...
Vitamin B12 is essential for health, but supplementing with high doses may cause side effects such as acne, kidney damage, and autism risk. Learn how much B12 you need, where to get...
Learn about the benefits, recommended intake, and side effects of vitamin B12, a water-soluble nutrient essential for blood and nerve health. Find out how to get enough B12 from diet or supplements, and what to do if you have low or high levels.
Learn why people take vitamin B-12, how much they need, and where to get it from foods or supplements. Find out the possible side effects and interactions of vitamin B-12 and when to talk to...
Tell your doctor right away if any of these serious side effects occur: muscle cramps, weakness, irregular heartbeat. A very serious allergic reaction to this drug is rare.
Vitamin B12 overview for health professionals. Research health effects, dosing, sources, deficiency symptoms, side effects, and interactions here.