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Furthermore, the form of vitamin B12 in plant foods has a lower bioavailability than animal derived vitamin B12, and is easily degraded during cooking and food preparation (6)

Mugnaini M, Antolini M, Corsi M, van Amsterdam FT

Tetrapeptides such as Epithalon are particularly vulnerable to exopeptidases aminopeptidases that cleave from the N-terminus and carboxypeptidases that cleave from the C-terminus

However, there are certain factors that can trigger a migraine
