Pregnancy supplements: folic acid, iron and vitamin D

Supplements do not replace a varied diet, and “natural” does not automatically mean safe in pregnancy. Bring a list of everything you take to your prenatal appointment.

Folic acid early in pregnancy

NHS guidance recommends 400 micrograms of folic acid daily when trying to conceive or as soon as pregnancy is known, through the first 12 weeks. Some people need a higher prescribed dose because of their medical history or medication. Do not increase the dose yourself.

Ask about iron and vitamin D

Iron needs are assessed during prenatal care; your clinician may recommend supplements if tests show a need. Fatigue alone does not establish iron deficiency. Vitamin D advice depends on sunlight, skin tone, location and local guidance. Ask your care team what amount is right for you.

Read the label

Avoid supplements containing vitamin A as retinol or cod liver oil unless a qualified professional advises otherwise. Check combined products so you do not duplicate doses. Bring packaging or photos of all medicines, herbal products and supplements to your appointment.