Encyclopedia  /  Nutrition  /  Vitamin B12 & Postpartum Depression
Nutrition

Vitamin B12 & Postpartum Depression

Vitamin B12 works alongside folate in mood-related brain chemistry, and deficiency—more common in vegetarian, vegan, or depleted mothers—is associated with depression and fatigue. Adequate B12 supports postpartum energy and mood.
Educational information, not medical advice. This page summarizes published research and public-health guidance for learning purposes. It is not a substitute for diagnosis or treatment by a qualified clinician. If you are struggling, talk to your doctor or midwife. In a crisis, call or text 988 or the Maternal Mental Health Hotline at 1-833-852-6262.

Evidence snapshot — computed from live data

25
Studies indexed (PubMed)
moderate evidence
Strength score 45/100

Why Vitamin B12 matters for postpartum mood

B12 is needed to make neurotransmitters and to maintain the myelin around nerves. Deficiency causes fatigue, low mood, and cognitive fog—symptoms easily mistaken for, or compounding, postpartum depression.

Food sources

Rich dietary sources of Vitamin B12 include Beef Liver, Clams, Salmon, Eggs. Here is how a few compare on USDA nutrient data:

FoodProteinIronEnergy
Beef Liver26.31g6.12mg174kcal
ClamsNutrient profile unavailable
Salmon15.2g0.48mg139kcal
EggsNutrient profile unavailable

Per-100g nutrient values pulled live from the USDA FoodData Central database.

A food-first approach

Rebuilding Vitamin B12 through warming, nutrient-dense meals is central to Emily Montague’s postpartum recovery method. It supports — but never replaces — medical care for postpartum depression.

Sources & further reading

Selected recent peer-reviewed studies, pulled live from the U.S. National Library of Medicine (PubMed). Counts and citations update automatically.

  1. Islam N et al. “A Systematic Review of the Correlation Between Micronutrient Levels and Perinatal Depression.” Nutrients (2025). PubMed →
  2. Voros C et al. “Invisible Links: Associations Between Micronutrient Deficiencies and Postpartum Depression-A Systematic Review.” Life (Basel, Switzerland) (2025). PubMed →
  3. Aishwarya S et al. “The see-saw effect of neuroactive steroids and endocrine disrupting compounds on maternal mental health status.” Neurotoxicology (2025). PubMed →
  4. Al-Sabah R et al. “Antenatal Depression and its Associated Factors: Findings from Kuwait Birth Cohort Study.” Journal of epidemiology and global health (2024). PubMed →
  5. Cruz-Rodríguez J et al. “Association between of vitamin B12 status during pregnancy and probable postpartum depression: the ECLIPSES study.” Journal of reproductive and infant psychology (2025). PubMed →
Explore the encyclopedia

Related entries

ConditionPostpartum thyroiditisTreatmentAntidepressantsTreatmentBrexanoloneTreatmentZuranoloneTreatmentPsychotherapyTreatmentNutrition therapyNutritionVitamin DNutritionOmega-3NutritionIron
Emily Montague, The Postpartum Chef
Written & reviewed by

Emily Montague, The Postpartum Chef

Emily is a chef, mother of five and postpartum-recovery educator who revives the 2,000-year-old zuo yuezi ("sitting month") tradition for modern mothers. Her patent-backed, food-first method helps women rebuild after birth and ease postpartum depression — and she now certifies doulas and midwives to cook it for their own clients.

Visit The Sitting Month →    Meet Emily →

Ready to heal the first 28 days?

Emily's food-first recovery course, recovery teas and doula & midwife certification live at The Sitting Month. Text Emily and she'll help you find the right starting point.

Explore The Sitting Month