It's whether the evidence of benefit outweighs the evidence of harm at a population scale, across diverse patients, over meaningful time horizons
Another noteworthy example is -polylysine, which exhibited MIC values of 500, 800, 800, and 1,000 g/mL against P
But beneath the surface of glossy marketing and fitness fantasies lies a far more sobering truth: many of these substances operate in a medical grey zone, with unknown long-term risks, questionable manufacturing standards, and in some cases, life-threatening side-effects
[6] [2] [3] Severe vitamin B 12 deficiency can damage nerve cells
Those with Lebers disease (a hereditary eye condition) should also avoid B12 as it may worsen the condition