are animal and human b12 injections same Should You Take Natural vs. Synthetic B12? The B12 in meat is
The B12 in meat is from supplements given to the cows.so why not just take the supplement directly : r vegan Vitamin B12: A Comprehensive Review of Natural vs Synthetic Forms of Consumption and Supplementation PMC Methylcobalamin vs Cyanocobalamin: What's the Difference? Cyanocobalamin Wikipedia
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