GLP-1 medications like semaglutide and tirzepatide create real nutritional challenges
This could explain why tirzepatide (which stimulates the GIP pathway in addition to GLP -1) can be administered at higher doses than semaglutide (which only stimulates GLP-1), without amplifying the side effects typical of GLP-1 agonists (nausea, vomiting)
Even peptides for anti-aging may play a role in overall metabolic health optimization
The FTO gene variant (rs9939609) influences not just hunger but also circadian rhythm sensitivity, meaning some patients benefit more dramatically from GLP-1's sleep-regulating effects while others experience a gentler transition
Disruption of the BBB is seen in numerous pathologic processes
Moreover, IF is contraindicated in patients with specific rare metabolic or genetic disorders, such as pyruvate carboxylase deficiency (PCD) (159), primary carnitine deficiency (PCD) (160), carnitine-acylcarnitine translocase (CACT) deficiency (161), 3-hydroxyacyl-CoA dehydrogenase deficiencies, including both medium-chain (MCHAD) and long-chain (LCHAD) forms (162, 163), medium-chain acyl-CoA dehydrogenase deficiency (MCADD) (164), very-long-chain acyl-CoA dehydrogenase deficiency (VLCADD) (165), and porphyria (166)