Protocol for meta-research on the evidence informing micronutrient dietary reference intakes for pregnant and lactating women

Gates Open Res. 2020 Nov 13:4:171. doi: 10.12688/gatesopenres.13199.1. eCollection 2020.

Abstract

Nutrient reference values are important parameters that guide nutrition and public health work globally. Micronutrient requirements during the peri-conception period are generally increased, which is essential in ensuring maternal, fetal, and neonatal health. Nevertheless, the current dietary reference intakes (DRIs) may be limited in terms of the methods used and the populations included, particularly the DRIs for pregnancy and lactation. In this proposed review, we will examine the methods (rigor of design, utilization of molecular methods, and presence of modern methods) and the population (inclusion of women, and in particular, pregnant and lactating people) in the studies used to inform the current DRIs. We will apply meta-science methods to this review, which involves formally reviewing the current evidence, and identifying opportunities to improve how we fund, perform, evaluate, and incorporate nutrition science into public health programs for better outcomes.

Keywords: Nutrition reference value; dietary reference intake; inclusion; lactation; meta-science; pregnancy.

Grants and funding

This work is funded by the Bill and Melinda Gates Foundation [Grant No INV-016930]. This review is a part of the grant entitled, Optimizing Maternal Nutrition: Adaptive Trials and Molecular Methods to Improve Maternal and Newborn Health.