Does biotin cause insulin resistance? We found that biotin deprivation caused reduced concentrations of blood glucose and serum insulin concentrations, but increased plasma glucagon levels. Biotin-deficient mice also presented impaired glucose and insulin tolerance tests, indicating defects in insulin sensitivity.
Can diabetics take biotin for hair growth? People with diabetes may have lower-than-normal levels of biotin. There’s some evidence that taking biotin supplements by mouth may slow hair loss. Just talk to your doctor first. The recommended adequate intake for adults is 30 micrograms per day, but supplements usually contain much higher amounts.