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You can get recommended amounts of vitamin B12 by eating a variety of foods including the following: Beef liver and clams, which are the best sources of vitamin B12 Fish, meat, poultry, eggs, milk, and other dairy products, which also contain vitamin B12 Some breakfast cereals, nutritional yeasts, and other food products that are fortified with vitamin B12

& Morris, S

These studies mainly focused on the livers capability to synthesize urea-N (urea nitrogen), a possible indicator of how the liver metabolizes nitrogen

This suggests the peptide works through direct mechanisms rather than just stimulating the GH axis

It represents an actual or potential health risk to the athletes