Calcium in Pregnancy mg per day

Calcium in Pregnancy: Daily Intake Guide

The baby's bones draw heavily on calcium, with most of that demand falling in the third trimester, and the mother needs enough to keep her own bone mass intact. For pregnant women aged 19 and up, the standard target is 1000 mg/day. It climbs to 1300 mg/day for adolescents under 19, who are still laying down their own peak bone mass on top of everything else.

Getting enough calcium in pregnancy is tied to a lower chance of gestational hypertension and pre-eclampsia, an effect that shows up most clearly where baseline intake is low — which is why the WHO recommends 1.5–2 g/day of supplementation for those groups. You'll find calcium in milk and what's made from it (yogurt, cheese), in canned sardines eaten with the bones, and in broccoli, kale, tofu, and fortified foods. None of it absorbs well without vitamin D, whether that comes from sunlight or a supplement.

Applications

Obstetricians, nutritionists, midwives, and primary care teams can use it when walking a patient through prenatal nutrition. The numbers follow the guidelines from the Brazilian Pediatric Society (SBP), the Brazilian Federation of Gynecology and Obstetrics (Febrasgo), and the WHO. It comes in handy above all for pregnant women who are lactose-intolerant, adolescents, vegans, or anyone carrying risk factors for chronic hypertension.

FAQ

Can I rely only on diet? You can, as long as the food actually adds up to the target. For most women, two or three servings of dairy a day plus some leafy greens and sardines gets there. If you're lactose-intolerant or vegan, fortified foods or a supplement usually fill the gap.

Can calcium be taken with iron? Better not to. Calcium gets in the way of iron absorption, so leave at least 2 hours between the two supplements and don't wash your iron down with milk.

Is this calculator a medical prescription? No. Think of it as an educational reference built on the SBP, Febrasgo, NIH, and WHO guidelines. Your total dose, whether you need a supplement, and how to pair it with vitamin D are calls for your obstetrician or nutritionist to make.