Pregnancy and Lactation

What is Pregnancy and Lactation?

Pregnancy and lactation are natural phases that place unique nutritional demands on your body. During these times, your body needs higher amounts of specific nutrients to support your baby's growth and development. Your blood volume increases, your metabolism changes, and your body prioritizes delivering essential vitamins and minerals to your developing baby or through breast milk.

Many nutrients become critical during pregnancy and breastfeeding, especially folate. Folate, also called vitamin B9, plays a vital role in cell division and DNA synthesis. Your body needs about 50% more folate during pregnancy than usual. This nutrient helps prevent neural tube defects, which are serious birth defects of the brain and spine that develop in the first few weeks of pregnancy. It also supports healthy red blood cell production and may reduce the risk of pregnancy complications like preeclampsia.

Monitoring your nutrient levels through blood testing helps ensure you and your baby get what you need. Testing can identify deficiencies before they cause problems. This proactive approach supports the healthiest possible outcomes for both mother and baby during pregnancy and the breastfeeding months that follow.

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Symptoms

Fatigue and low energy levels
Pale skin or paleness inside the eyelids
Shortness of breath during normal activities
Difficulty concentrating or brain fog
Headaches or dizziness
Cold hands and feet
Rapid heartbeat or palpitations
Sore or swollen tongue
Weakness or muscle fatigue

Many pregnant and breastfeeding women feel tired due to the normal demands of this life stage. However, severe fatigue or other symptoms may indicate nutrient deficiencies that need attention. Some women have low folate or other nutrient levels without obvious symptoms, making blood testing an important preventive tool.

Causes and risk factors

Your nutritional needs increase dramatically during pregnancy and lactation because your body supports two lives instead of one. Your blood volume expands by about 50% during pregnancy, requiring more red blood cells and the nutrients needed to make them. Your developing baby draws folate, iron, and other essential nutrients from your body to build their own cells, tissues, and organs. If you don't consume enough through diet or supplements, your body's stores can become depleted.

Risk factors for nutrient deficiency during pregnancy include poor diet, frequent pregnancies with short intervals between them, morning sickness that limits food intake, and conditions that affect nutrient absorption. Women carrying multiples, teenagers who are still growing themselves, and those with certain genetic variations affecting folate metabolism face higher risks. Breastfeeding mothers also need extra nutrients because breast milk production draws from maternal stores to nourish the baby.

How it's diagnosed

Blood testing is the most accurate way to assess your nutrient status during pregnancy and lactation. A simple blood draw can measure your folate levels and red blood cell counts to identify deficiencies before they cause serious problems. RBC folate testing provides the best picture of your tissue folate stores, showing how much folate your body actually has available for important functions. This test is more reliable than serum folate because it reflects longer-term status rather than just recent intake.

Rite Aid offers folate and RBC testing as an add-on to our flagship panel. You can get tested at over 2,000 Quest Diagnostics locations nationwide. Regular monitoring during pregnancy and breastfeeding helps you catch and correct deficiencies early. Your healthcare provider may also check other markers like hemoglobin, vitamin B12, and iron to get a fuller picture of your nutritional health.

Treatment options

Take a prenatal vitamin with at least 400 to 800 micrograms of folic acid daily
Eat folate-rich foods like leafy greens, beans, lentils, citrus fruits, and fortified grains
Consume adequate protein from varied sources to support tissue growth
Include iron-rich foods like lean meat, poultry, fish, and fortified cereals
Stay hydrated with at least 8 to 10 glasses of water daily
Avoid alcohol, which interferes with folate absorption and metabolism
Work with your healthcare provider to adjust supplement doses based on test results
Consider prescription-strength folate supplements if you have certain genetic variations
Retest nutrient levels each trimester or as recommended by your provider
Continue prenatal vitamins throughout breastfeeding to maintain nutrient stores

Frequently asked questions

Ideally, test your folate levels before you conceive or as soon as you learn you're pregnant. Neural tube defects develop in the first 4 weeks of pregnancy, often before women know they're pregnant. Testing early helps you address any deficiencies quickly. Many healthcare providers recommend retesting once per trimester to ensure levels stay adequate throughout pregnancy.

Folate is the natural form of vitamin B9 found in foods like leafy greens and beans. Folic acid is the synthetic form used in supplements and fortified foods. Your body must convert folic acid into active folate to use it. Most people convert it efficiently, but some have genetic variations that make natural folate or methylfolate supplements a better choice.

Getting enough folate from food alone is very difficult during pregnancy. You would need to eat about 6 cups of raw spinach or 3 cups of cooked lentils daily to meet pregnancy requirements. Most healthcare providers recommend prenatal vitamins with folic acid in addition to a folate-rich diet to ensure adequate intake.

Breastfeeding mothers need about 500 micrograms of folate daily, compared to 400 micrograms for non-pregnant adults and 600 micrograms during pregnancy. Breast milk draws folate from your body's stores to nourish your baby. Continuing your prenatal vitamin while breastfeeding helps maintain your folate levels and supports healthy milk production.

Neural tube defects are serious birth defects where the brain or spine doesn't form properly. The most common types are spina bifida and anencephaly. Folate is essential for proper cell division and DNA synthesis during the earliest stages of fetal development. Adequate folate intake before and during early pregnancy reduces the risk of these defects by 50 to 70%.

Yes, low folate during pregnancy increases your risk of several complications. These include preeclampsia, a dangerous condition with high blood pressure, premature birth, low birth weight, and maternal anemia. Low folate can also cause extreme fatigue, making it harder to handle the physical demands of pregnancy. Adequate folate supports both your health and your baby's development.

RBC folate measures the folate inside your red blood cells, which reflects your tissue stores over the past 3 months. Regular serum folate testing only shows what's in your blood plasma right now. If you took a supplement the day before testing, serum folate might look normal even if your tissue stores are low. RBC folate provides a more accurate picture of your true folate status.

Dark leafy greens like spinach and kale are excellent sources, along with asparagus, Brussels sprouts, and broccoli. Legumes including lentils, chickpeas, and black beans provide substantial folate. Citrus fruits, avocados, and fortified grains also contribute meaningful amounts. Eating a variety of these foods daily, along with your prenatal vitamin, supports healthy folate levels.

Yes, especially if you're breastfeeding. Your folate needs remain elevated during lactation because you're passing nutrients to your baby through breast milk. Testing 6 to 8 weeks postpartum and again at 6 months can help ensure your levels stay healthy. This is particularly important if you plan to become pregnant again soon.

Yes, several medications can interfere with folate absorption or metabolism. These include some seizure medications, methotrexate, sulfasalazine, and certain antibiotics. If you take any regular medications, discuss them with your healthcare provider before and during pregnancy. You may need higher folate doses or more frequent monitoring to maintain healthy levels.