Vitamin B12 plays a key role in regenerating nerve cells and restoring proper function
In subacute toxicity studies, high doses (1,600 mg/kg) of the stem bark extract led to elevated liver enzymes and biochemical markers of kidney damage, indicating potential hepatotoxicity and nephrotoxicity with prolonged use (706)
A consistent pattern emerges: evidence is mostly limited to animal studies human studies, where they exist, are small and short-term there are no high-quality trials reflecting real-world use, including combinations, higher doses or long-term administration
It works between meals, sweeping residual food and bacteria out of the small intestine
This selectivity is one reason it is frequently referenced in academic discussions around endocrine signalling
This article compares the two compounds directly: what each is, how their mechanisms differ, and the research logic of pairing them