Doses of pyridoxine as low as 5-10 mg can antagonize levodopas effect if carbidopa is not present, so caution is warranted and any supplemental B beyond the nutritional dose should be under medical guidance
This NAD+ elevation activates sirtuins, particularly SIRT1 in adipocytes and hepatocytes, which deacetylates and activates numerous metabolic regulatory proteins including PGC-1, a master regulator of mitochondrial biogenesis, oxidative metabolism, and thermogenesis
Translating the signal into proportionate action Persistent, unexplained elevation can justify further evaluation or a search for occult disease when the history, examination, CBC, liver tests, renal function, or other findings support it
Getting this wrong means getting either too little compound (wasting time) or too much (unnecessary side effects)