Ingredient
Vitamin B12 & Selenium
What is Vitamin B12 & Selenium?
Vitamin B12, also known as cobalamin, is a water-soluble vitamin essential for red blood cell formation, neurological function, and DNA synthesis. Selenium is a trace mineral important for various bodily processes, including metabolism and thyroid function.
Vitamin B12 and selenium are often combined in dietary supplements to support essential body functions. Vitamin B12 is mainly found in animal products, which can make it challenging for vegans to obtain. Selenium can be sourced from both plant and animal products, with varying content based on soil and diet.
When you see these ingredients on a label, they're typically included for their nutritional benefits. Both have established daily intake recommendations, and deficits in either can lead to health issues.
Commonly found in: Dietary supplements, Fortified foods, Animal-derived products, Seafood, Multivitamins
What to watch
- Excessive selenium intake can cause selenosis, leading to gastrointestinal issues and hair loss.
- Both vitamin B12 deficiency and excess are linked with various health issues, necessitating balanced intake.
Benefits
- Vitamin B12 supports brain health and red blood cell production.
- Selenium acts as an antioxidant, helping prevent cell damage.
Both vitamin B12 and selenium are recognized as essential nutrients by the FDA, with established daily values.
Research supports their essential roles in health, though the impact of supplementation is debated, especially in those without deficiency.
Vitamin B12 is primarily animal-derived; vegans should consider fortified foods or supplements.
Sources: Dietary Supplements Fact Sheet: Vitamin B12 · Selenium Fact Sheet
Scout's take
Cod is a concentrated source of B12 for neurological health and selenium for thyroid function
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