When combined with adequate protein intake and resistance training , this creates a protective effect that significantly limits lean mass loss
These injections bypass the gastrointestinal tract, making them especially beneficial for those with absorption challenges, such as individuals with pernicious anemia or post-gastrectomy patients
L-carnitine is a naturally occurring compound produced in the liver and kidneys from amino acids (Lysine Methionine), which is found in high quantities in muscles
But it can also be used for preventive purposes, with widely-documented protective benefits for the body
These results are consistent with results observed in mice (26) and strongly support a role for gut microbiota in BB generation from dietary l-carnitine in humans
The animal data showing GH/IGF-1 elevation and bone/lean mass gains comes from aged, often GH-deficient animal models populations with impaired baseline GH axis function