Ask the ExpertsHealthy EatingSubscriber Only Q. Can you tell me what biotin is and how much people need? Published: January 9, 2020 Updated: February 21, 2020 0 Facebook Twitter Pinterest Google+ Print Q. Can you tell me what biotin is and how much people need? To continue reading this article you must be a paid subscriber Subscribe Subscribe to Tufts Health & Nutrition Get the next year of Tufts Health & Nutrition for as little as $18. And access all of our back issues and online content free of charge. Subscribe today and save 36% off the regular rate! Already Subscribed? Click Here to Sign In | Forgot your password?