Supplements for the postpartum year

The postpartum stack — practical and layered by phase

First 6 weeks — repletion phase

Continue prenatal vitamin. Get postpartum bloodwork: CBC, ferritin, 25-OH-D, TSH (postpartum thyroiditis is common and can mimic depression). If ferritin is <30–50 ng/mL, replete with ferrous bisglycinate 30 mg elemental every other day with vitamin C, on an empty stomach. If 25-OH-D <30 ng/mL, supplement vitamin D3 to target (typically 2,000–4,000 IU/day).

If breastfeeding — lactation-supportive layer

Omega-3 EPA+DHA 1 g/day with at least 300 mg DHA — maternal DHA is drawn into breastmilk; repletion supports both maternal mood and infant brain development. Iodine ≥150 mcg/day (most US-style prenatal vitamins contain this; check the label). Choline 550 mg/day if dietary intake is low. Vitamin D 6,000 IU/day in the mother is one alternative to giving infant vitamin D drops directly — discuss with your pediatrician.

Sleep, mood, and nervous system support

Magnesium bisglycinate 200–400 mg elemental before bed supports sleep quality, modestly helps muscle cramping common in early postpartum, and may modestly support mood. This is not a substitute for clinical care if PPD symptoms are present.

If you might conceive again soon

Continuing folate (5-MTHF or folic acid 400–800 mcg/day) covers periconceptional needs without a gap — neural tube defect prevention starts before pregnancy is detected.

Mental health screening matters more than any supplement

The Edinburgh Postnatal Depression Scale at 6 weeks and again at 3–6 months is a 5-minute, validated screening tool. Supplements do not substitute for evaluation and treatment of postpartum depression, anxiety, or psychosis. If you have concerns about how you're coping, please reach out — to your obstetric provider, primary care, mental health professional, your child's pediatrician, or 1-833-TLC-MAMA (US maternal mental health hotline).