Postpartum Mood & Nutrition: The Overlooked Connection

Pregnancy places significant demands on the body. For nine months, the body uses additional energy and nutrients to support the growth and development of a baby while still attempting to meet the mother’s own needs.

After birth, those demands do not simply disappear. The body is still recovering from pregnancy and delivery, hormones are shifting, and sleep is often fragmented. All of this can further increase nutritional needs.

Because of this, it is very common for new mothers to experience some degree of nutritional depletion after pregnancy. This is not a failure on the parent’s part—it is simply the reality of what the body goes through during pregnancy and birth.

What is often overlooked is how these nutrient levels can influence how someone feels both emotionally and physically during the postpartum period. Research has shown that deficiencies in certain nutrients are associated with a higher risk of postpartum mood disorders, including postpartum depression and anxiety.

At the same time, prioritizing nutrition can feel nearly impossible while caring for a newborn. Regular meals are often one of the first things to fall apart. Even so, small efforts to nourish the body during this time can support energy, recovery, and mood.

Iron

Iron deficiency is very common after giving birth. Blood loss during delivery can significantly lower iron levels, and many people enter postpartum already low after developing anemia during pregnancy.

Low iron doesn’t just cause fatigue; it can also affect mood, concentration, and overall wellbeing. Iron-deficient anemia has been associated with a higher risk of postpartum depression.

Supporting iron levels during pregnancy and after birth, through iron-rich foods and sometimes supplementation, can be an important part of postpartum recovery.

Food sources of iron include:

• Red meat
• Liver and other organ meats
• Lentils
• Soybeans
• White beans
• Black-eyed peas
• Dark chocolate
• Blackstrap molasses

Folate

Folate is best known for supporting fetal development during pregnancy, but its role continues postpartum. Folate helps the body produce neurotransmitters like serotonin and dopamine, which influence mood.

Food sources of folate include:

• Lentils
• Chickpeas
• Broccoli
• Dark leafy greens
• Legumes
• Beets

Zinc

Zinc is a mineral that doesn’t get talked about very often, but it plays a surprisingly important role in both immune function and brain health. Low zinc levels have also been linked to increased risk of depression and anxiety. Making sure zinc-rich foods are part of regular meals can help support both physical recovery and emotional well-being during this time.

Food sources of zinc include:

• Shellfish (oysters, mussels, clams
• Beef
• Pork
• Pumpkin seeds
• Hemp seeds

Magnesium

Magnesium helps regulate the body’s stress response, supports healthy sleep, and plays a role in muscle relaxation. Low levels have been associated with increased anxiety, irritability, and sleep difficulties.

Between the physical stress of childbirth, disrupted sleep, and the demands of caring for a newborn, the nervous system is already under a lot of strain during the postpartum period. Adequate magnesium can help support the body during this time.

Food sources of magnesium include:

• Pumpkin seeds
• Almonds and cashews
• Dark chocolate
• Black beans
• Spinach
• Avocado

Vitamin D

Vitamin D supports immune function, hormone regulation, and mood. Low levels have been linked to an increased risk of depression, including postpartum depression. Deficiency is very common, especially for people who spend most of their time indoors or live in northern climates.

Food sources of vitamin D include:

• Salmon
• Sardines
• Egg yolks
• Fortified dairy

Blood Sugar

In addition to providing the body with the key nutrients it needs postpartum, one major factor that impacts mood and energy during this time is blood sugar regulation.

The postpartum period is metabolically demanding. The body is healing, sleep is fragmented, and caring for a newborn often means meals become irregular. As a result, low blood sugar is very common during this season.

Blood sugar dips can show up as:

• Sudden irritability or rage
• Feeling shaky, anxious, or panicky
• Overwhelm that seems to come out of nowhere
• Brain fog
• Energy crashes
• Intense cravings for sugar or quick carbohydrates

When blood sugar drops, the body releases stress hormones like cortisol and adrenaline to bring it back up. Physiologically, that stress response can feel very similar to anxiety.

A few simple strategies can help support more stable blood sugar throughout the day:

• Eat within an hour of waking (even something small)
• Include protein every time food is eaten
• Pair carbohydrates with protein or fat
• Keep one-handed snacks accessible (yogurt, protein bars, nuts, cheese sticks, and smoothies are all great options)
• Avoid relying on caffeine as a meal replacement

For many new parents, simply stabilizing blood sugar can significantly reduce the intensity of postpartum anxiety, mood swings, and energy crashes.

Putting the Pieces Together

The postpartum period is complex, and mood struggles can have many contributing factors. Nutrition is only one piece, but it is an important one that is often overlooked. Rebuilding nutrient stores, stabilizing blood sugar, and supporting the body’s recovery after pregnancy can make a meaningful difference in how many parents feel during this time. When fatigue, mood changes, or other postpartum symptoms persist, working with a qualified professional to assess nutrition and overall health can help identify areas where additional support may be needed.

References

Amini, S., Jafarirad, S., & Amani, R. (2019). Postpartum depression and vitamin D: A systematic review. Critical reviews in food science and nutrition, 59(9), 1514–1520. https://doi.org/10.1080/10408398.2017.1423276

Aoki, C., Imai, K., Owaki, T., Kobayashi-Nakano, T., Ushida, T., Iitani, Y., Nakamura, N., Kajiyama, H., & Kotani, T. (2022). The Possible Effects of Zinc Supplementation on Postpartum Depression and Anemia. Medicina (Kaunas, Lithuania), 58(6), 731. https://doi.org/10.3390/medicina58060731

​​Etebary, S., Nikseresht, S., Sadeghipour, H. R., & Zarrindast, M. R. (2010). Postpartum depression and role of serum trace elements. Iranian journal of psychiatry, 5(2), 40–46.

Ghaedrahmati, M., & Alipour, Z. (2024). The Association between Post-Partum Depression and Nutrition and Dietary Patterns: Systematic Review. Iranian journal of nursing and midwifery research, 29(3), 280–289. https://doi.org/10.4103/ijnmr.ijnmr_163_22

Sheikh, M., Hantoushzadeh, S., Shariat, M., Farahani, Z., & Ebrahiminasab, O. (2017). The efficacy of early iron supplementation on postpartum depression, a randomized double-blind placebo-controlled trial. European journal of nutrition, 56(2), 901–908. https://doi.org/10.1007/s00394-015-1140-6 (Retraction published Eur J Nutr. 2022 Dec;61(8):4239. doi: 10.1007/s00394-022-03009-4.)