Biotin is a water-soluble B complex vitamin required for many reactions involved in the metabolism of carbohydrates, fats and proteins .* Biotin is found in many foods such as liver, egg yolk, green vegetables and whole grains.
The U.S. Food and Drug Administration (FDA) has established a Reference Daily Intake (RDI) of 300 μg biotin for adults and children 4 or more years of age (21CFR101.9). RDIs are a set of dietary references for essential vitamins and minerals that are considered amounts sufficient to meet the daily requirements of healthy individuals. RDIs serve as the basis for calculating the percent daily value (%DV) amounts found on dietary supplement and food labels.