Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/21/2025

Nutritional Supplementation Guidelines

Introduction to Biotin Supplementation

  • The adequate intake for biotin in adults is 30 μg/day, as recommended by the Clinical Nutrition society 1

Therapeutic Uses of Biotin

  • Higher doses of 2.5-10 mg/day of biotin have been used in clinical settings, according to the American Society of Clinical Oncology 2
  • Therapeutic biotin doses can range from 10 mg/day for malabsorption and short bowel syndrome to 200 mg/day IV for deficient patients dependent on parenteral nutrition, according to the European Society for Clinical Nutrition and Metabolism (ESPEN) guidelines 1

Management of Biotin Deficiency

  • For patients with suspected or confirmed biotin deficiency, starting with 2.5-5 mg daily is recommended, as suggested by the American Society of Clinical Oncology 2
  • Checking and correcting other potential deficiencies, such as zinc, iron, and vitamin D, may be beneficial in selected cases, as recommended by the American Society of Clinical Oncology 2
  • Chronic liver diseases can lead to decreased serum biotinidase activity, suggesting that liver disease affects biotin metabolism, rather than biotin affecting liver function, as indicated by the European Society for Clinical Nutrition and Metabolism (ESPEN) guidelines 1

Biotin Supplementation in Pregnancy and Lactation

  • Pregnant women may benefit from higher biotin intake than the standard recommendation of 30 μg/day, with clinical trials suggesting higher biotin needs during pregnancy, as indicated by the European Society for Clinical Nutrition and Metabolism (ESPEN) guidelines 1
  • Biotin supplementation is safe during pregnancy, with no adverse effects shown for both oral and IV administration up to 5 mg/day for prolonged periods, according to the European Society for Clinical Nutrition and Metabolism (ESPEN) guidelines 1
  • Women with malabsorption conditions may require higher doses (up to 10 mg/day) of biotin, according to the European Society for Clinical Nutrition and Metabolism (ESPEN) guidelines 1
  • Pregnant and lactating women may have higher biotin requirements, with breastfeeding mothers recommended to receive at least 35 μg biotin per day, according to the European Society for Clinical Nutrition and Metabolism (ESPEN) guidelines 1, 3
  • Women with a history of bariatric surgery should have biotin levels checked every trimester, as recommended by the Obesity Reviews 4

Safety and Administration

  • Biotin is routinely administered at doses of 30-60 μg/day in enteral and parenteral nutrition without safety concerns, as stated by the European Society for Clinical Nutrition and Metabolism (ESPEN) guidelines 1
  • Monitoring may be warranted in high-risk situations, including women with malabsorption conditions or those taking certain medications 1