A new report suggests women with vitamin D deficiency have an increased risk of miscarriage
Researchers analysed the nutrients in the blood of just over 1,000 women pre-pregnancy and then two months after conception who had experienced a previous pregnancy.
The women with higher vitamin D levels in line with the recommendation were 15 per cent more likely to have a live birth and the risks of miscarriage decreased.
The study was reported in The Independent after the findings were published in the Lancet Diabetes and Endocrinology lead by Dr Sunni Mumford from from the Eunice Kennedy Shriver National Institute of Child Health and Human Development in Rockville, Maryland.
The study looked at IVF success rates and claim that live births rates improved with improved with sunnier weather, but that there was less effect on it with people who were trying to conceive naturally.
Vitamin D is an essential nutrient for the body to absorb calcium and other minerals from the food and drink we consume.
Deficiencies can cause bone weakness and deformities, particularly in children who are growing rapidly where it can lead to rickets.
People get up to 90 per cent of their vitamin D from the sun, but in gloomier climates like the UK deficiencies can occur, particularly in black and minority ethnic people with darker skin or where people are not getting a balanced diet or are spending much of their time indoors.
For this study researchers classified vitamin D levels of 30 nanograms per millilitre or below as “insufficient”. Women above this threshold were ten per cent more likely to become pregnant than women below it, and each ten nanogram per millilitre increase in their vitamin D levels prior to conception was linked to a 12 per cent lower risk of pregnancy loss.
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