Bioavailability

  • Assessment
  • Implementation
  • Monitoring & Evaluation
  • All micronutrient interventions
  • Food vehicle

Definition

The portion of a micronutrient that can be digested, absorbed, and used for normal functions in the human body. For example, iron can be absorbed from less than 5% to nearly 20% of what is ingested, depending on the composition of the diet and the iron status of the consumer.

References

WHO (2021). “Monitoring flour fortification to maximize health benefits: a manual for millers, regulators, and programme managers.”