Pregnancy Foods

Pregnancy nutrition directly affects fetal development and maternal health. Caloric needs add roughly 0 kcal in the first trimester, +340 kcal in the second, and +450 kcal in the third (normal BMI). Nutrient density matters more than calories. Certain foods are best avoided due to infection, heavy-metal, or developmental risks.

Key nutrients

• Folate (400–800 µg/day; 1 mg through week 12): spinach, broccoli, asparagus, beans, fortified cereal — prevents neural tube defects.
• Iron (27 mg/day): lean red meat, beans, spinach, fortified cereal. Pair with vitamin C for absorption.
• Calcium (1,000 mg/day): milk, yogurt, cheese, tofu, small bone-in fish.
• DHA / Omega-3 (200–300 mg/day): low-mercury fish, flaxseed, walnuts.
• Vitamin D (600 IU/day): sunlight, fortified milk, egg yolk.
• Protein (75–100 g/day): lean meat, fish, eggs, beans, nuts.
• Fiber + fluids: prevents constipation. ~2.5 L/day.

Foods to avoid

• Raw or undercooked: sushi, sashimi, beef tartare, soft-cooked eggs, deli meats, rare beef — listeria and salmonella risk.
• High-mercury fish: swordfish, shark, king mackerel, tilefish, large tuna steaks — neurodevelopmental risk.
• Unpasteurized dairy: raw milk, soft cheeses (brie, feta, blue, camembert) — listeria risk.
• Alcohol: no safe amount — fetal alcohol spectrum risk.
• Heavily processed foods: added salt and additives.
• Herbal supplements: only with clinician approval (some are uterotonic).

Foods to limit

• Caffeine: under 200 mg/day (about one cup of coffee). Include tea, cola, chocolate.
• Canned tuna: chunk light up to 12 oz / 340 g per week. Avoid large tuna steaks.
• Vitamin A (retinol): large amounts (e.g., from liver) carry a teratogenic risk. β-carotene from plants is safe.
• Artificial sweeteners: aspartame and sucralose are considered safe in normal amounts (FDA/EFSA). Avoid saccharin.
• Sodium: moderate to limit swelling and high blood pressure.

Foods that tend to help with nausea

• Plain crackers, dry toast, cereal
• Bananas, apples
• Rice porridge / congee
• Yogurt, cold milk
• Ginger tea, lemon water

Related calculators

• Pregnancy weight gain Track cumulative gain against the IOM recommended range by pre-pregnancy BMI
• Due date Calculate pregnancy week and due date from your last period

Related topics

• Early Pregnancy Symptoms The 13 most common signs in the first 1–4 weeks
• Implantation Bleeding Light early-pregnancy spotting — timing, color, vs. a period
• Morning Sickness The most common symptom of weeks 6–12 — timing, severity, and relief
• Pregnancy Exercise Safe workouts by trimester — what to do and what to skip
• Pregnancy Weight Gain Recommended range by BMI, weekly targets, gaining too much or too little
• Fetal Movement When you first feel it, how it changes, and how to count kicks