The flaw in this "science" is it's one-size-fits-all rather than µg/kg. In addition, it doesn't take into account absorption, genetics, epigenetics, or much of

The flaw in this "science" is it's one-size-fits-all rather than µg/kg. In addition, it doesn't take into account absorption, genetics, epigenetics, or much of anything except an average guess by age and gender. Picking magic numbers and asking people to stupidly follow them isn't science, it's blowing smoke. Science would be routinely checking levels of all vitamins, minerals, and micronutrients and asking patients to adjust their intake accordingly.