That comes from a different trial: the Phase 1 single-dose study in lean participants, where -hydroxybutyrate started below the assays detection floor and reached 708 mol/L at 4.5 mg by day 8 a large, dose-ordered rise in a lean cohort. The MASLD substudy, by contrast, found ketones moving only at 4 mg and above in a group with insulin resistance damping the readout
Available: Badawy, A.A., Kynurenine Pathway of Tryptophan Metabolism: Regulatory and Functional Aspects, International Journal of Tryptophan Research
10.1002/(SICI)1096-9101(1996)19:3 3.0.CO;28 90 RadeljakS.SeiwerthS.SikiricP
LKB1 loss links serine metabolism to DNA methylation and tumorigenesis
Much of the foundational literature originates from a single research program, and all observations described here derive from controlled, non-clinical research conducted by third parties