Further assessment of the prevalence of biotin supplementation and its impact on risk

• Awareness of biotin interference has been heightened requiring assessment of the prevalence of high dose supplementation. • The only previously published study indicated 7% prevalence of biotin levels over 10 μg/L in the USA. • Our emergency department study finds <1% over 10 μg/L in Australia. • The mitigation of biotin risk depends on understanding the population as well as the specific vulnerability of each...