Vitamin B12 Deficiency: Symptoms, causes, treatments, and your questions answered.

Examine Database: Vitamin B12 Deficiency

Intervention	Health Outcome	Grade	Evidence	Effect
Vitamin B12	4 Outcomes		2 Studies

4 Outcomes

2 Studies

Research FeedRead all studies

Supplemental vitamin B12 in addition to metformin for people with type 2 diabetes

In this systematic review, supplementation with vitamin B12 was effective in raising serum B₁₂ levels in participants with type 2 diabetes who were taking metformin.

Vegan diets increase the risk of vitamin B12 deficiency

Is natural better than synthetic vitamin B12?

Vitamins and psychiatric disorders in children and adolescents

Vitamin B12 status in vegetarian, vegan, and omnivorous children

Examine Database References

Homocysteine - Hill MH, Flatley JE, Barker ME, Garner CM, Manning NJ, Olpin SE, Moat SJ, Russell J, Powers HJA vitamin B-12 supplement of 500 μg/d for eight weeks does not normalize urinary methylmalonic acid or other biomarkers of vitamin B-12 status in elderly people with moderately poor vitamin B-12 statusJ Nutr.(2013 Feb)
Depression Symptoms - Markun S, Gravestock I, Jäger L, Rosemann T, Pichierri G, Burgstaller JMEffects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.Nutrients.(2021-Mar-12)