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    Vitamin B12

    Morning, sublingual for better absorption

    Vitamin B12 (cobalamin) is a water-soluble essential vitamin found primarily in animal products such as meat, fish, eggs, and dairy. It plays a critical role in red blood cell production, neurological function, and DNA synthesis, making it one of the most important micronutrients for overall health.

    Gil Carvalho
    Gil CarvalhoTakes it
    Research Evidence
    May improve mood and depressive symptoms in deficient populations
    Limited
    Supports healthy neurological function and may slow cognitive decline in deficient individuals
    Moderate
    May reduce homocysteine levels when combined with folate
    Moderate
    Prevents and treats B12 deficiency and megaloblastic anemia
    Strong
    May support energy levels in individuals with suboptimal B12 status
    Limited
    Essential for proper red blood cell formation
    Strong
    Source: Examine.com

    Expert Evidence

    18 references from 5 experts

    “Next thing I take is a B12. And this I just take once a week... it's been shown many times that it's perfectly effective and you get all you need.”

    Doctor Reveals his complete Supplement Stack

    6:33
    Safety & Cautions

    Side Effects

    • Mild nausea at high doses
    • Skin rash in rare cases
    • Headache
    • Anxiety or restlessness at very high doses
    Vitamin B12 is generally considered very safe, even at doses well above the RDA, since excess is excreted in urine. However, individuals with certain conditions like Leber's disease should consult a healthcare provider before supplementing, as B12 can worsen optic nerve damage in this population.
    Pairs Well With
    IronVitamin D3Omega-3 Fatty Acids (EPA)