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Peptides are essential to many biological processes, including cell signaling, metabolism, and growth
However, many people still develop deficiencies due to diet, absorption issues, or lifestyle factors
However, unfortunately, vitamin B12 deficiency is somewhat common, especially in the elderly, strict vegans, and people on antacid medications, so I dont mean to downplay the importance of vitamin B12 or the B vitamins more generally
What happens if my medicines are held by customs
10.1016/j.regpep.2012.12.007 4 BecejacT.CesarecV.DrmicD.HirslD.MadzaracG.DjakovicZ.et al (2018)
doi: 10.1126/science.aad8711 297 HuangYYanJLiQLiJGongSZhouHet al
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