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Immune cells, particularly CD4+ and CD8+ T cells, depend on sufficient arginine concentrations to maintain effector functions

The MHRA position, summarised by Lynda Scammell (head of borderline products at the MHRA) and reported in The Guardian on 4 April 2026, is that products which are sold for human use or which carry medicinal claims fall inside the Human Medicines Regulations 2012, and that the MHRA is investigating UK clinics making such claims about unregulated peptide products

Increased monocyte-derived reactive oxygen species in type 2 diabetes: role of endoplasmic reticulum stress

PLoS ONE 17:e0262044

Has been shown to support lung and bronchial health.*
