food high in l carnitine Rich Foods: Understanding L-Carnitine and Its Benefits Carnitine: Requirements, food sources, benefits,

McHugh D, Gil J

Biopharm Drug Dispos 2003

Other effective supplements Magnesium Magnesium is the fourth most abundant cation in the human body, which can play an important role in several vital body functions, such as enzyme activity, deoxyribonucleic acid (DNA) and protein synthesis, oxidative phosphorylation, and parathyroid hormone secretion (180, 181)

Poly (N-(2-hydroxypropyl) methacrylamide polymer) (pHPMA)-coated penetratin-insulin complex that has almost neutral surface charge showed enhanced mucus diffusion and insulin delivery in a diabetic rat model compared to nanoparticles whose surface charge is negative (Shan et al., 2015)