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Before the beginning: nutrition and lifestyle in the preconception period and its importance for future health

Stephenson, J; Heslehurst, N; Hall, J; Schoenaker, DAJM; Hutchinson, J; Cade, JE; Poston, L; ... Mishra, GD; + view all (2018) Before the beginning: nutrition and lifestyle in the preconception period and its importance for future health. The Lancet , 391 (10132) pp. 1830-1841. 10.1016/S0140-6736(18)30311-8. Green open access

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Abstract

A woman who is healthy at the time of conception is more likely to have a successful pregnancy and a healthy child. We reviewed published evidence and present new data from low-income, middle-income, and high-income countries on the timing and importance of preconception health for subsequent maternal and child health. We describe the extent to which pregnancy is planned, and whether planning is linked to preconception health behaviours. Observational studies show strong links between health before pregnancy and maternal and child health outcomes, with consequences that can extend across generations, but awareness of these links is not widespread. Poor nutrition and obesity are rife among women of reproductive age, and differences between high-income and low-income countries have become less distinct, with typical diets falling far short of nutritional recommendations in both settings and especially among adolescents. Several studies show that micronutrient supplementation starting in pregnancy can correct important maternal nutrient deficiencies, but effects on child health outcomes are disappointing. Other interventions to improve diet during pregnancy have had little effect on maternal and newborn health outcomes. Comparatively few interventions have been made for preconception diet and lifestyle. Improvements in the measurement of pregnancy planning have quantified the degree of pregnancy planning and suggest that it is more common than previously recognised. Planning for pregnancy is associated with a mixed pattern of health behaviours before conception. We propose novel definitions of the preconception period relating to embryo development and actions at individual or population level. A sharper focus on intervention before conception is needed to improve maternal and child health and reduce the growing burden of non-communicable diseases. Alongside continued efforts to reduce smoking, alcohol consumption, and obesity in the population, we call for heightened awareness of preconception health, particularly regarding diet and nutrition. Importantly, health professionals should be alerted to ways of identifying women who are planning a pregnancy.

Type: Article
Title: Before the beginning: nutrition and lifestyle in the preconception period and its importance for future health
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/S0140-6736(18)30311-8
Publisher version: https://doi.org/10.1016/S0140-6736(18)30311-8
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Inst for Women's Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Inst for Women's Health > Reproductive Health
URI: https://discovery.ucl.ac.uk/id/eprint/10048082
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