Pregnancy · 6 min read

Eating well in pregnancy: iron, calcium and folate

Pregnancy attracts more food advice than almost any other situation in life, most of it unsolicited and a fair amount of it wrong. The genuinely important parts are few, and they are worth separating from the rest.

The short version: you do not need to eat for two, you do need enough iron, and folic acid matters most before you even know you are pregnant.

Folate, and why timing matters more than dose

Folic acid reduces the chance of neural tube defects, and the neural tube closes in the first four weeks — often before a woman knows she is pregnant. That is why it is recommended from before conception and through the first trimester, and why we raise it at pre-pregnancy counselling rather than at the booking visit.

If you are reading this already pregnant and have not been taking it, start now and do not spend energy on regret. Most pregnancies where it was started late are entirely fine.

Iron: the one most commonly short

Anaemia in pregnancy is common in India and it matters, because it affects how you cope with the birth and how you recover afterwards. Your haemoglobin is checked at booking and again later, and supplements are prescribed on the basis of that number rather than as a matter of routine.

Iron from food absorbs better alongside vitamin C — dal with a squeeze of lemon, or fruit after a meal. Tea and coffee with meals reduce absorption, so keep them between meals rather than with them.

Iron tablets commonly cause constipation and dark stools. Both are expected. If they make you feel genuinely unwell, tell us — there are alternatives, and stopping quietly without telling anyone is the worst option.

Calcium and vitamin D

Calcium requirements rise in pregnancy. Milk, curd, paneer, ragi, sesame and green leafy vegetables all contribute. Vitamin D deficiency is very widespread in India, including in people who get plenty of sun, and it is checked and supplemented where needed.

You are not eating for two

The extra energy a pregnancy needs is modest and it comes mostly in the second and third trimesters — roughly an extra snack a day, not an extra meal. Excessive weight gain makes gestational diabetes and a difficult delivery more likely, not less.

Equally, this is not the time to diet. If your weight is a concern, we will talk about it with actual numbers rather than leaving you to guess.

What to be careful with

Raw or undercooked meat and eggs, unpasteurised milk and soft cheeses made from it, and cut fruit that has been sitting out. Fish is good in pregnancy; simply favour smaller fish over the largest predatory ones.

On tea and coffee: moderate amounts are fine. There is no need to give them up entirely, and being told to has made a great many women miserable for no benefit.

Advice you can safely ignore

That particular foods make the baby fair, or determine anything about the baby. That papaya or pineapple will cause a miscarriage in normal quantities. That you must avoid an entire food group because a relative says so.

If you are being pressed at home to follow a rule that is making you anxious or is cutting out something nutritious, bring it up at your next visit. We are entirely willing to say out loud, in front of whoever needs to hear it, that it is not necessary.

Written and reviewed by Dr. Jigna Jasoliya, M.S. (Obstetrics & Gynaecology), Gujarat Medical Council Reg. G/25348. Published 2026-09-05. Last checked 2026-09-05.

This article is general information, not medical advice about your own situation. If something here applies to you, come and talk to us.