Vitamin and mineral supplements

Taking a daily multivitamin when you are pregnant will also help you and your baby to be healthy and meet your nutrient needs for important vitamins and minerals. Take your supplement throughout your pregnancy.

Choose a multivitamin and mineral supplement (or prenatal supplement) that has:

  • 0.4 mg folic acid
  • 16 to 20 mg iron
  • 400 IU of vitamin D
  • Some vitamin B12

Do not take more than 1 daily dose of a multivitamin and mineral supplement.

Vitamin A – Caution:

Too much vitamin A can be harmful to your baby. Do not take more than 10,000 IU (International Units) of vitamin A daily from your food and supplements. Liver is high in vitamin A. If you eat beef liver, limit to a 75 g serving (2.5 oz) every 2 weeks.

Vegan:

If you are vegan or if you avoid certain foods, you may be missing important nutrients. Call Health Link at 8-1-1 and ask to speak to a Registered Dietitian.

Important nutrients and minerals

Supplements do not take the place of food and healthy eating. It is important to eat sources of the following nutrients from foods as well.

Folic Acid (folate in food)

Each day, choose foods high in folate and take a multivitamin and mineral supplement containing 0.4mg (400mcg) of folic acid to help prevent neural tube defects in your baby.

Some people may need higher levels of folic acid. Talk to your healthcare provider about your folic needs if:

  • You have had a pregnancy affected by a neural tube defect.
  • You have a close relative with a neural tube defect.
  • You have diabetes, obesity or epilepsy.
  • You take medication.
  • You have certain health conditions or used alcohol beyond a healthy limit prior to pregnancy

Do not take more than 1 mg of folic acid per day before talking to your healthcare provider.

Foods high in folate or fortified with folic acid include:

  • Whole grain breads
  • Leafy green vegetables
  • Beans and lentils
  • Citrus fruits and juices
  • Most cereals

Iron

 Your iron needs are very high during pregnancy. Your body makes an extra 2 kg (4 lbs) of blood during pregnancy. You need higher amounts of iron to make this extra blood. In your third trimester, your baby is also storing up iron to use for the first 6 months after birth.

Choose foods high in iron and take a multivitamin containing 16 – 20 mg of iron (most prenatal vitamins have more than 20 mg of iron). Your body absorbs the iron from meat, poultry and fish better than iron from other foods. For your body to absorb more iron, eat a food containing vitamin C (e.g. oranges or strawberries) and a food containing iron at the same time. For example have tomatoes with meat, or an orange with a bowl of cereal and milk.

Best sources of iron:

  • Beef
  • Pork
  • Chicken
  • Lamb
  • Fish
  • Sardines
  • Shrimp
  • Oysters
  • Mussels

Other foods with iron:

  • Pumpkin seeds
  • Legumes (lentils, beans, chickpeas)
  • Tofu
  • Whole grain and enriched cereals

Tea and coffee can interfere with iron absorption, so don’t have them at the same time as foods with iron.

Some women may need to take iron supplements. Talk to your healthcare provider to find out how much is right for you.

Iron Deficiency Anemia

When you’re pregnant, it’s hard to get the amount of iron you need just from the foods you eat. Healthcare providers recommend taking a multivitamin and mineral supplement containing folic acid and iron (16 – 20 mg) during pregnancy. If you have iron-deficiency, you may need to take more than 16-20mg of iron per day. Talk to your healthcare provider about the amount that’s right for you.

Iron deficiency anemia during pregnancy has been linked to decreased weight gain, preterm birth and babies with a low birth weight.

A common sign of anemia is feeling tired. However, since most people feel tired during their pregnancy anyway, blood tests are an important way your healthcare provider can make sure you’re getting enough iron.

Only take an extra iron supplement if your healthcare provider tells you to. Iron supplements can make you constipated, so be sure to increase your intake of fibre and fluids if you are taking one.

 

Calcium

 Calcium helps keep your bones strong. It also helps your muscles and nerves work properly. During pregnancy, calcium helps your baby build strong bones and teeth too. Drink at least 500 ml (2 cups) of milk or fortified soy beverage each day.

Foods high in calcium:

  • Milk
  • Yogurt
  • Calcium-fortified beverages, such as soy or orange juice. The label must say it has been calcium fortified.
  • Cheese (choose cheese that is considered safe during pregnancy, see food safety section)

Other sources of calcium:

  • Canned salmon or sardines with bones
  • Tofu made with calcium
  • White beans

Other plant based beverages are not a substitute for cow’s milk or a fortified soy beverage as these beverages are lower in protein and may not be fortified with calcium and vitamin D.

Vitamin D

Vitamin D is important during pregnancy. It helps keep your bones strong and builds strong bones in your baby. It also helps your baby store up her own vitamin D during the first few months. Many Canadians don’t get enough vitamin D.

Check your multivitamin to see how much vitamin D you’re getting from it. You may need to add an extra vitamin D supplement if the multivitamin has less than 400 IU. In addition to your supplement, drinking 2 cups (500 mL) of milk or a fortified plant-based beverage can also help you get enough vitamin D. If you feel you are not getting enough Vitamin D talk to your health care provider.

Foods high in vitamin D:

  • Milk
  • Fortified soy beverages
  • Fatty Fish (e.g. salmon, trout, herring, Atlantic mackerel and sardines)
  • Eggs

Omega-3 fatty acids

Omega-3 fatty acids are important during pregnancy. One type of Omega -3 fat known as docosahexaenoic acid (DHA), is important for a baby’s brain and eye development. DHA is primarily found in fish, shellfish, and omega-3 enriched eggs. Health Canada recommends eating at least 5 oz (150 grams) of cooked fish every week during pregnancy.

Pregnant clients who don’t eat fish can talk to their doctor about taking an omega-3 supplement. If you choose to take omega-3 supplements, choose ones that have not been made from fish liver. These may have too much vitamin A.

Fish high in omega-3 fatty acids (and low in mercury):

  • Salmon
  • Trout
  • Mackerel
  • Char
  • Herring
  • Sardines

Smaller amount of omega-3 fatty acids:

  • Vegetable oil
  • nuts and seeds
  • eggs enriched with omega-3 fatty acids
  • Other fish like halibut, pollock, sole, canned light tuna, and cod