Aug 8, 2017 · Looking to see if the cyanocobalamin form of vitamin B-12 is safe? Read research and safety information on ConsumerLab's report.

Information about vitamin b 12 including independent product reviews and comparisons, warnings, recalls, side effects, clinical use updates, and news.

Feb 6, 2025 · Discover the optimal dosage and ways to take vitamin B-12, an essential nutrient, for better absorption and effectiveness and learn about possible side effects.

Nov 10, 2025 · Read our reviews of B vitamin supplements to find the best B complex, niacin, B-6, B-12, biotin, thiamin and folate, including "methyl" forms such as methylfolate. Get …

Oct 17, 2024 · ConsumerLab tests of B vitamin supplements, including B complexes, biotin, B-6, B-12, niacin, and others, found some contain far less, or far more, of one or B vitamins than …

Apr 28, 2022 · People with this mutation may also be more likely to be deficient in vitamin B-12 and may need additional B-12 either as its methylated form, methylcobalamin, or the more …

Oct 14, 2025 · Find out which 8 supplements may be needed by vegetarians or vegans to meet all their daily nutrient requirements and learn ways to find supplements that do not contain …

May 14, 2019 · Find out the daily value for vitamin B-12 and the potential side effects of taking too much B-12. ConsumerLab explains why taking too much vitamin B-12 can be harmful.

Jun 25, 2019 · The report explains important differences among forms of B vitamins, such as those of niacin (nicotinic acid, niacinamide, and inositol hexanicotinate), folate (natural folate, …

Sep 9, 2015 · Learn the difference between sublingual vitamin B-12, vitamin B-12 pills and more through information including clinical evidence.