VITAMIN B12 - Uses, Side Effects, and More - WebMD
Special Precautions and Warnings. When taken by mouth: Vitamin B12 is likely safe for most people. Vitamin B12 is considered safe even in large doses. When applied to the skin:...
Vitamin B-12 - Mayo Clinic
2024年6月28日 · 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.
Can Vitamin B-12 Cause Side Effects? - Healthline
2023年6月8日 · Taking too much can cause side effects like nausea, headache, dizziness, and in rarely, blood clots or cancer. Everyone needs vitamin B-12, and most people get enough through their diet....
Vitamin B12 Side Effects: Common, Severe, Long Term - Drugs.com
2024年9月24日 · Learn about the side effects of Vitamin B12 (cyanocobalamin), from common to rare, for consumers and healthcare professionals.
How Much Vitamin B12 Is Too Much? - Healthline
2023年2月24日 · Helpful or harmful? This essential vitamin is generally considered safe, even at high doses. However, most people get enough B12 through diet alone, and unnecessary supplementing may lead to...
Can You Have Too Much B12? - Verywell Health
2024年9月29日 · Infertility. Certain cancers. Neural tube defects. Because of the ill effects that can develop from not getting enough vitamin B12, it’s essential to have your levels tested by a healthcare provider, eat more foods with the nutrient, or take supplements if …
Vitamin B-12 Tablet - Uses, Side Effects, and More - WebMD
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 - Health Professional Fact Sheet
These values, which vary by age and sex, include the following: Table 1 lists the current RDAs for vitamin B12 [1]. For adults, the main criterion that the FNB used to establish the RDAs was the amount needed to maintain a healthy hematological status and serum vitamin B12 levels.
These doses are considered safe. Check the Supplement Facts label to see how much vitamin B12 a supplement contains. A prescription form of vitamin B12 can be given as a shot. This is usually used to treat vitamin B12 deficiency. Vitamin B12 is also available by prescription as a nasal gel that’s sprayed into the nose.
VITAMIN B-12 - Uses, Side Effects, and More - WebMD
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.