The vagus nerve is extraordinarily sensitive to local gut hormone concentrations, and it does not require supraphysiological levels to fire
Presented for research literature review only Ahern S (2025)
That means: No voice deepening No facial or body hair growth No disruptions to the menstrual cycle No clitoral enlargement or other masculinizing effects This makes IGF-1 LR3 a strong option for women aiming to improve recovery, lean mass, and body composition without sacrificing femininity
Between-group comparisons of clinical and laboratory parameters were performed with t-test and Chi-square test or Fishers exact test as appropriate
Neurobiol Aging 30:15231534 Lee SW, Hu YS, Hu LF, Lu Q, Dawe GS, Moore PK et al (2006) Hydrogen sulphide regulates calcium homeostasis in microglial cells
Clinical data shows response timing correlates with baseline metabolic markers, genetic variation in GLP-1 receptor pathways, and individual insulin sensitivity