Biotin

Functions

• Coenzyme in synthesis of fatty acids and glycogen
• Amino acid metabolism

Deficiency

• Dermatitis
  • skin inflammation

Characteristics

• water soluble

Good Sources

Natural

• egg yolk
• milk and dairy products
• liver, kidneys
• vegetables and fruits
  • dark green vegetables
  • bananas, grapefruits, watermelon and strawberries

Artificial

• yeast extracts

Adequate Intakes (AI)

• Males and Female (Adult)
  • 30 mcg
  • Sufficient data to set RDA are unavailable

Tolerable Upper Intake Levels (UL)

• Adults (19 to 50 years)
  • not yet determined
• Intakes above UL may lead to negative health consequences

Supplementation

• Not recommended