1. Duley, L (2009) The global impact of pre-eclampsia and eclampsia. Semin Perinatol 33, 130–137.
2. Imdad, A & Bhutta, ZA (2012) Effects of calcium supplementation during pregnancy on maternal, fetal and birth outcomes. Paediatr Perinat Epidemiol 26, Suppl. 1, 138–152.
3. Gaym, A, Bailey, P, Pearson, L et al. (2011) Disease burden due to pre-eclampsia/eclampsia and the Ethiopian health system’s response. Int J Gynaecol Obstet 115, 112–116.
4. Hofmeyr, GJ, Belizan, JM, von Dadelszen, P et al. (2014) Low-dose calcium supplementation for preventing pre-eclampsia: a systematic review and commentary. BJOG 121, 951–957.
5. Buppasiri, P, Lumbiganon, P, Thinkhamrop, J et al. (2011) Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes. Cochrane Database Syst Rev issue 10, CD007079.
6. Trumbo, PR & Ellwood, KC (2007) Supplemental calcium and risk reduction of hypertension, pregnancy-induced hypertension, and preeclampsia: an evidence-based review by the US Food and Drug Administration. Nutr Rev 65, 78–87.
8. Goulding, A & Robinson, M (2002) Major minerals: calcium and magnesium. In Essentials of Human Nutrition, pp. 128–144 [J Mann and AS Truswell, editors]. New York: Oxford University Press.
13. Gibson, RS & Ferguson, EL (2008) An Interactive 24-hour Recall for Assessing the Adequacy of Iron and Zinc Intakes in Developing Countries. HarvestPlus Technical Monograph . Washington, DC and Cali: International Food Policy Research Institute and International Center for Tropical Agriculture; available at http://www.harvestplus.org/sites/default/files/tech08.pdf
14. Kennedy, G, Ballard, T & Dop, M (2011) Guidelines for Measuring Household and Individual Dietary Diversity. Rome: FAO; available http://www.fao.org/3/a-i1983e.pdf
15. Food and Agriculture Organization of the United Nations & World Health Organization (WHO) (2001) Human Vitamin and Mineral Requirements: Report of a Joint FAO/WHO Expert Consultation Bangkok, Thailand. Rome: Food and Nutrition Division, FAO; available at http://www.fao.org/3/a-y2809e.pdf
17. Omotayo, MO, Dickin, KL, Pelletier, DL et al. (2018) Feasibility of integrating calcium and iron–folate supplementation to prevent preeclampsia and anemia in pregnancy in primary healthcare facilities in Kenya. Matern Child Nutr 14, Suppl. 1, e12437.
18. Jahns, L, Arab, L, Carriquiry, A et al. (2005) The use of external within-person variance estimates to adjust nutrient intake distributions over time and across populations. Public Health Nutr 8, 69–76.
20. Bielderman, I, Bruins, MJ, Engle-Stone, , R et al. (2015) Symposium report: Effective and safe micronutrient interventions, weighing the risks against the benefits. Eur J Nutr Food Saf 5, 202–228.
21. Food and Agriculture Organization of the United Nations (1991)
Production Yearbook 1990. Rome: FAO.
23. Kobati, G, Lartey, A, Marquis, G et al. (2012) Dietary intakes and body mass indices of non-pregnant, non-lactating (NPNL) women from the Coastal and Guinea savannah zones of Ghana. Afr J Food Agric Nutr Dev 12, 5843–5861.
25. Lönnerdal, B (2010) Calcium and iron absorption – mechanisms and public health relevance. Int J Vitam Nutr Res 80, 293–299.
27. Currie, S, de Graft-Johnson, J, Galloway, R et al. (2012)
Interventions for Impact in Essential Obstetric and Newborn Care: Meeting Report, Asia Regional Meeting, 3–6 May 2012, Dhaka, Bangladesh
. Washington, DC: Maternal and Child Health Integrated Program; available at https://www.k4health.org/sites/default/files/EONC_AsiaRegionalMeeting_web.pdf
28. Omotayo, MO, Dickin, KL, O’Brien, KO et al. (2016) Calcium supplementation to prevent preeclampsia: translating guidelines into practice in low-income countries. Adv Nutr 7, 275–278.
29. Asayehu, TT, Lachat, C, Henauw, S et al. (2017) Dietary behaviour, food and nutrient intake of women do not change during pregnancy in Southern Ethiopia. Matern Child Nutr 13, e12343.