Key Functions of Vitamin B12: Red blood cell formation Nervous system maintenance DNA synthesis Fatty acid metabolism Energy production Signs of B12 Deficiency Not getting enough Vitamin B12 can cause health problems
The FDA Just Banned 17 Peptide Treatments The agency banned peptides from certain pharmacies, but others blazed past new regulations
A Systematic Review and Meta-Analysis of B Vitamin Supplementation on Depressive Symptoms, Anxiety, and Stress: Effects on Healthy and At-Risk Individuals
This can leave you feeling tired and lethargic, and can even make it difficult to concentrate
Publisher FDA Accessed Jun 27, 2026 Study type Regulatory Document Limitations: Regulatory language is product-, jurisdiction- and use-specific
Consider an animal study scenario: a researcher dosing each animal at 250 mcg per kilogram of body weight, using a 1,000 mcg/mL solution