Total estimated usual nutrient intake and nutrient status biomarkers in women of childbearing age and women of menopausal age.

The American journal of clinical nutrition. 2021;113(4):1042-1052

Plain language summary

Nutritional needs vary depending on the stage in a woman’s lifecycle. Women of child-bearing age (WCBA) and women of menopausal age (WMENO) are at high risk of not meeting required nutrient amounts, yet data is limited on nutrient intakes in these groups. This observational study of 4134 WCBA and 3438 WMENO aimed to determine any nutrient gaps and if associations exist between dietary intake and blood levels of key nutrients. The results showed that WCBA and WMENO had inadequate dietary intakes of calcium, magnesium, and vitamins A, C, D and E, which was allevaited by supplementation. Women who had lower levels of folate, vitamins D, B12 and essential fatty acids had lower dietary intakes of these nutrients, indicating a risk of deficiency. It was concluded that many women of WCBA and WMENO may have inadequate dietary nutrient intake and supplementation may improve this. This study could be used by healthcare professionals to understand that nutrient intakes may be inadequate in WCBA and WMENO. Dietary recommendations to increase nutrient intake would be advisable, however if individuals are still not meeting nutrient requirements, nutrient supplementation may be advisable.

Abstract

BACKGROUND Women of childbearing age (WCBA) and women of menopausal age (WMENO) have distinct nutritional needs. Understanding nutrient intake and status in these life stages is critical for tailoring dietary recommendations. OBJECTIVES The objectives of this study were to evaluate total estimated usual nutrient intakes from food and food plus supplements and to compare these to established recommendations for WCBA and WMENO life stages and examine associations between self-reported estimated usual intakes and nutrient status biomarkers. METHODS Twenty-four-hour dietary recall data from 2011-2016 NHANES were used to estimate usual intake of nutrients from food and food plus supplements for WCBA (aged 15-44 y, n = 4,134) and WMENO (aged 40-65 y, n = 3,438). Estimates of mean usual intake were derived and compared across clinically defined nutrient biomarker categories. RESULTS Both young (aged 15-30 y) and older (aged 31-44 y) WCBA had intakes from food below the Estimated Average Requirement (EAR) for calcium (49% and 44%, respectively), magnesium (62%, 44%), and vitamins A (50%, 44%), C (47%, 46%), D (>97%, >97%), and E (92%, 88%). Similarly, perimenopausal (aged 40-50 y) and menopausal (aged 51-65 y) women had intakes from food below the EAR for calcium (48% and 74%, respectively), magnesium (50%, 49%), and vitamins A (44%, 37%), C (44%, 41%), D (>97%, >97%), and E (88%, 86%). Nutrient gaps decreased with supplement usage. For folate, vitamins D and B-12, and DHA, women in the lowest biomarker category (indicating increased risk of deficiency) had significantly lower intake from food (315.2 ± 25.9 compared with 463.8 ± 5.2 µg dietary folate equivalents, 3.5 ± 0.1 compared with 4.2 ± 0.1 µg, 3.6 ± 0.2 compared with 4.3 ± 0.1 µg, and 0.037 ± 0.005 compared with 0.070 ± 0.006 g, respectively; P < 0.01) of the corresponding nutrient compared with the highest biomarker category. CONCLUSIONS Substantial percentages of WCBA and WMENO are not meeting recommendations for multiple nutrients, whereas supplement usage partially fills nutrient gaps. Dietary intake was positively associated with most nutrient status biomarkers. Specific guidance is needed to ensure adequate nutrient intakes and nutrient status during these critical life stages.

Lifestyle medicine

Fundamental Clinical Imbalances : Hormonal
Patient Centred Factors : Mediators/Menopause
Environmental Inputs : Diet ; Nutrients
Personal Lifestyle Factors : Not applicable
Functional Laboratory Testing : Not applicable

Methodological quality

Jadad score : Not applicable
Allocation concealment : Not applicable

Metadata

Nutrition Evidence keywords : Menopause ; Pregnancy ; Nutrient deficiency ; Supplementation