The liver produces folate-containing bile, which if not all absorbed in the small intestine, contributes to fecal folate, intact and as cleavage products, which under normal dietary intake has been estimated to be similar in amount to urinary excretion
A daily deficit of about 500 calories adds up to about 1 pound per week, or about 4 pounds per month
In the first step, acyl groups are transferred from CoA to carnitine by outer membrane bounded enzymes CPT-1a and CPT-1b
Not all approved biosimilars achieve interchangeable status, though HHS policy is actively pushing to remove barriers
That said, some individuals and healthcare providers have reported positive results in specific cases, particularly when microdosing is used to improve tolerability or address off-label needs