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Oral Supplements Cyanocobalamin tablets (common) Methylcobalamin (easier to absorb) B12 sprays or dissolvable tabs Pros: Easy to take No needles Affordable Cons: Absorption varies Not ideal for GI conditions Food Sources Liver (highly concentrated) Eggs Red meat Cheese Shellfish and fish Plant-based
It could be a peptide
The primary concerns with nasal peptides involve nasal irritation if formulations arent pH-optimized, potential mucosal damage from preservatives, and variable absorption due to nasal congestion
But to ensure that you are not wasting your money at the very least, or endangering your body at worst, lets examine the efficacy of vitamin B-12 injections for weight loss
(6) Studies have documented that NNMT is highly expressed in white adipose tissue and that its expression correlates with obesity in both humans and animal models
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