l carnitine low carb diet NOW Foods, Sports, Liquid L-Carnitine, Citrus, 32 fl oz (946 ml) – Vitacost Losing weight with L-carnitine supplements.

You can ask a doctor if this is something they can offer you

Ikeda H, Shiojima I, Ozasa Y et al (2009) Interaction of myocardial insulin receptor and IGF receptor signaling in exercise-induced cardiac hypertrophy

Antibodies for Microtubule-associated protein-2 (MAP2), GCL, CK2, and GSH (A001-50UG from Arbor Assays) were used to assess general abundance and colocalizations across the hippocampus, while an antibody against neuron-specific Class III -tubulin (TUJ1) was used to assess specific dendritic disruption

Taylor RA, Toivanen R, Frydenberg M, Pedersen J, Harewood L, Australian Prostate Cancer Bioresource, et al

And the reason is that the ghrelin itself can impact the growth hormone pathway pretty potently