In many regions, it's perfectly legal to buy, provided it's obtained from reputable sources
High-dose oral therapy (1000-2000 micrograms cyanocobalamin daily) can also be effective even in pernicious anaemia, as approximately 1% of B12 can be absorbed through passive diffusion, independent of intrinsic factor
Possible reasons for these inconsistencies include differences in modes, duration, and intensity of exercise
Low magnesium levels in the tissues, something that is very common, has been shown to double the number of free radicals being formed and to dramatically lower the cell glutathione levels." HOW MUCH MAGNESIUM
However, this method may not be suitable for everyone
The study investigated the best concentration of DTNB by examining a range of concentrations from 100 to 5 mM, including 100, 500, 1, 2, 3, 4, and 5 mM