text: FDA released a warning about biotin supplements - INSIDER
  Nov. 30, 2017, 3:11 PM
  Biotin is a natural vitamin — we get it from food like eggs, whole grains, and almonds, so in the right amounts, it's not a problem. The risk of ruining important test results comes into play with supplements, which can have up to 650 times the recommended daily intake of the vitamin, says the FDA. It's this level of biotin that could cause a false positive on a pregnancy test or a false negative in a cancer screening.