l-arginine l-citrulline and l-carnitine L-Arginine+l-Citrulline, Unflavored, 5.29 oz (150 g) Ultimate Muscle Builder Supplement 12200mg

Cell Metab (2016) 24:10417.10.1016/j.cmet.2016.06.007 34 GeigerRRieckmannJCWolfTBassoCFengYFuhrerTet alL-arginine modulates T cell metabolism and enhances survival and anti-tumor activity

People with MTHFS variants cannot do this efficientlyfolinic acid builds up instead of being metabolized. In a landmark 2018 study, treating MTHFS-deficient patients with folinic acid caused it to accumulate 30-fold and actually worsened their cerebral folate deficiency

Elevated insulin blocks fat mobilization, rendering the peptide less effective

Garbuzenko OB, Ivanova V, Kholodovych V, Reimer DC, Reuhl KR, Yurkow E, Adler D, Minko T

Brugnoli, R

Zhu M, Zhang X, Feng H, Dai J, Li J, Che Q, et al