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Phase Weeks 3+ (higher end) Daily dose 150 mg once daily Notes Some sources go this high

It is difficult to overdose on vitamin B6, however, as the established upper limit for adults is 100 milligrams a day

Brit Med J 2010;340:c2181

Nutraceutical Approach to Chronic Osteoarthritis: From Molecular Research to Clinical Evidence

It means precision matters more outside controlled environments