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[DOI] [PubMed] [Google Scholar] 107

Specific enzymes, like diamine oxidase (DAO) and Histamine N-methyltransferase (HNMT), break down histamine within the body to help regulate its levels

Risk Factors for Cortical, Nuclear, Posterior Subcapsular, and Mixed Lens Opacities: The Los Angeles Latino Eye Study

The search did reveal many review articles and reports of consensus opinion (level III evidence), but surprisingly, these all referred to only a few primary studies that dealt with my question
For comparison, the reconstitution math works identically to other peptides

Risk factors for vitamin B12 include (13, 14): Plant exclusive dietary intake: As animal-derived foods are the primary source of vitamin B12, those following a plant-exclusive diet have a higher risk of vitamin B12 deficiency