Women's health
Pregnancy
Evidence-based food, supplement, workout, and lifestyle protocols for pregnancy, including how to choose a prenatal, personalized to your body.
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Your stats
Standard reference values. Sign in to personalize.
- Height
- 5'4"
- Weight
- 140 lb (63.5 kg)
- BMI
- 24 (Normal)
- Gender
- Female
- Protein target (reference)
- 80–100 g/day
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Overview
- Evidence-based food, supplement, workout, and lifestyle protocols you can run day to day
- A concrete prenatal-buying guide: which nutrient forms and doses to look for on the label
- Protein and nutrition targets personalized to your body stats
- Low-toxin home, environment, and workplace guidance, without fear or perfectionism
- Preconception prep, symptom-support playbooks, and postpartum continuation
- Grounded in ACOG, CDC, WHO, FDA/EPA, NIH, NIEHS, the ADA, and the IOM
- Built to adapt trimester by trimester alongside your clinician
Protocols
Preconception & partner prep
- Start a prenatal with 400–800 mcg folate at least 1 month, ideally 3, before trying to conceive; folate works in the earliest weeks, often before you know.
- Book a preconception visit to review chronic conditions, medications, supplements, and vaccine immunity; never stop a prescribed medication on your own.
- Stop alcohol, nicotine/vaping, and cannabis/CBD before conception, with cessation support if quitting is hard.
- See a dentist for a cleaning and any needed treatment, it's safe and lowers infection burden.
- Build the metabolic base now: protein at meals, daily movement, and consistent sleep lower gestational-diabetes risk and build reserve.
- Partner: stop smoking and cannabis, limit alcohol, avoid testicular heat (hot tubs, sauna, laptop on lap), and prioritize sleep, training, and antioxidant-rich foods.
- Partner: use PPE and shower and change after chemical work so pesticides, solvents, and metals don't come home on skin, clothes, and shoes.
Food protocol
- Target 80–100 g protein daily, newer IAAO research puts pregnancy needs near 1.2 g/kg early and ~1.5 g/kg in late pregnancy, well above older guidelines.
- Anchor every meal with a palm-sized protein: eggs, Greek yogurt, fish, poultry, beef, lentils, or tofu.
- Eat 8–12 oz per week of low-mercury, omega-3-rich fish (salmon, sardines, anchovies, trout) for DHA, iodine, and protein.
- You don't eat fish, so get DHA from an algae-based omega-3 supplement (200–300 mg/day) and lean on chia, flax, and walnuts for ALA.
- Aim for about 2 large eggs most days. They supply roughly 250 mg of the choline most prenatals under-dose.
- You can't have eggs, so cover choline with lean beef, chicken, salmon, soybeans, or a choline supplement (bitartrate or citicoline).
- Build iron stores with red meat, lentils, and leafy greens paired with vitamin C; keep iron away from coffee, tea, and calcium.
- Fill half your plate with vegetables and fruit for folate, fiber, potassium, and antioxidants.
- Choose mostly whole-food, low-glycemic carbs (oats, legumes, whole grains, fruit) and pair carbs with protein or fat to blunt glucose spikes.
- Eat calcium-rich foods daily (dairy, fortified alternatives, sardines with bones) toward ~1,000 mg/day for bone and blood-pressure health.
- Dairy-free? Get calcium from fortified plant milks, calcium-set tofu, canned sardines or salmon with bones, and leafy greens.
- Hydrate to pale-yellow urine, roughly 2.3 L/day from fluids, more with heat, nausea, or swelling.
- Add ~340 kcal/day in the second trimester and ~450 kcal/day in the third; the first trimester needs no extra calories.
- For first-trimester nausea, eat small frequent protein-containing meals, try ginger, and keep dry crackers by the bed.
- Minimize ultra-processed foods, added sugar, and refined seed oils, aim for whole-food defaults without chasing perfection.
Food safety protocol
- Avoid high-mercury fish: shark, swordfish, king mackerel, tilefish, marlin, orange roughy, and bigeye tuna.
- Limit albacore (white) tuna and tuna steaks to 6 oz per week.
- Cook seafood and meat to 145°F, poultry to 165°F, and eggs until firm, no runny yolks.
- Skip raw or undercooked seafood (sushi, raw oysters) and refrigerated smoked fish.
- Avoid unpasteurized milk, cheese, and juice, plus soft cheeses (brie, feta, queso fresco) unless labeled pasteurized.
- Reheat deli meats and hot dogs until steaming (165°F) to kill Listeria, or skip them.
- Avoid raw sprouts and wash all produce thoroughly.
- Don't eat liver more than occasionally, it's extremely high in preformed vitamin A, which is harmful in excess.
- Cap caffeine at ~200 mg/day (about one 12-oz coffee) and avoid alcohol entirely.
Choosing your prenatal
- Buy a prenatal that's third-party tested, look for a USP, NSF, or ConsumerLab seal, which verifies the dose matches the label and screens for heavy metals.
- Read the Supplement Facts panel, not the marketing, confirm real amounts of folate, iron, iodine, vitamin D, choline, and DHA.
- Prefer folate as L-methylfolate (5-MTHF): it's the active form and bypasses the MTHFR conversion that 25–40% of people do poorly. Folic acid is also proven and fine if that's what you have.
- Choose iron as ferrous bisglycinate (chelated), about as absorbable as ferrous sulfate with far less nausea and constipation.
- Make sure iodine is included (~150 mcg, as potassium iodide), many formulas, especially gummies, leave it out.
- Pick vitamin D as D3 (cholecalciferol) over D2, it raises blood levels more reliably.
- Want omega-3 in the triglyceride form for better absorption and fewer fishy burps; algae-sourced DHA is a clean, mercury-free vegan option.
- Be wary of gummy prenatals, they usually skip iron and iodine and rarely contain enough DHA, so you'd have to add those separately.
- Keep preformed vitamin A (retinol, retinyl palmitate) low, stay under 3,000 mcg RAE (10,000 IU)/day from all sources; beta-carotene is safer because your body converts only what it needs.
- Skip proprietary blends that hide individual doses, plus unnecessary dyes and fillers.
- B12 as methylcobalamin and chelated minerals (like magnesium glycinate) are gentler, better-absorbed choices.
Supplement protocol
- Start a prenatal at least 1 month, ideally 3, before conception and continue through pregnancy and breastfeeding.
- Folate: 400–800 mcg supplement (~600 mcg DFE/day total), the single highest-impact nutrient, cutting neural-tube defects by 50–70%.
- With a prior NTD-affected pregnancy, ask your clinician about 4,000 mcg folic acid, a prescription-level dose, not a default.
- Iron: 27 mg/day; take between meals or at bedtime with water and a little vitamin C, and keep it 2+ hours from calcium, coffee, and tea.
- Iodine: 150–250 mcg/day for fetal brain and thyroid development.
- Vitamin D3: 600–2,000 IU/day, dosed to your blood level, providers often target the higher end for darker skin or low sun exposure.
- DHA: 200–300 mg/day (omega-3). Most prenatals omit it. Add a separate softgel or eat fatty fish 2–3×/week. Use an algae-based DHA supplement, which is fish-free.
- Vitamin B12: on a plant-based diet, make sure your prenatal or a separate supplement provides B12 (methylcobalamin), since plant foods run low.
- Choline: 450 mg/day, most prenatals contain under 55 mg, so eat eggs and lean meat or add choline bitartrate or citicoline.
- Calcium: ~1,000 mg/day from food plus any supplement, taken apart from iron; prenatals include only a small amount.
- Magnesium (glycinate) can ease constipation and leg cramps, check dose with your provider.
- Vitamin B6 (pyridoxine) ± doxylamine is the evidence-based first step for nausea, confirm with your clinician before adding.
- If you're at higher gestational-diabetes risk, ask about myo-inositol or vitamin D, which show preventive signal.
- Take fat-soluble vitamins (A, D, E, K) and DHA with a meal containing fat; if the prenatal causes nausea, take it at night with a light snack.
- Confirm your full stack and doses with your OB or midwife, count vitamin A from all sources and respect upper limits. More is not better.
Workout protocol
- Aim for at least 150 minutes of moderate-intensity activity per week, spread over 3–4 days, once your provider clears you.
- Gauge moderate intensity with the talk test: you can hold a conversation but not sing.
- Strength-train 2–3 days/week across major muscle groups; resistance work is safe and beneficial in every trimester.
- Add daily pelvic-floor (Kegel) work and gentle mobility to prepare for labor and recovery.
- Already lifting? Keep training. Drop load about 15–30%, stop sets shy of failure, and breathe steadily with no breath-holding (Valsalva).
- New to resistance training? Start with two short full-body sessions a week using bodyweight, bands, or machines, and build the habit before adding load.
- After the first trimester, stop exercising flat on your back; use incline, side-lying, or standing variations instead.
- Walk 10–15 minutes after meals to blunt post-meal glucose spikes, especially valuable if you're at risk for gestational diabetes.
- Swap high-impact or fall-risk activities for incline walking, stationary cycling, swimming, or prenatal strength.
- Avoid contact sports, scuba diving, hot or humid environments, and exercising above ~6,000 ft altitude.
- Stop and call your provider for vaginal bleeding, regular painful contractions, fluid leakage, chest pain, dizziness, headache, or calf pain and swelling.
- Deload when fatigue or pelvic pressure spikes. Months of consistency beat any single hard week.
Lifestyle protocol
- Protect 7–9 hours of sleep; side-sleeping (left when comfortable) eases circulation later in pregnancy.
- Get morning outdoor light and dim screens 60 minutes before bed to steady mood and sleep.
- Keep blood sugar stable: pair carbs with protein or fat, walk after meals, and don't skip meals.
- Build your care team early, OB or midwife, plus pelvic-floor PT if you have pain, leaking, or pressure.
- Manage stress actively with prayer, journaling, walks, or breathwork; chronic stress affects you both.
- Track weight gain against the IOM range for your pre-pregnancy BMI (see below) rather than a single number.
- Batch-prep protein and easy meals on higher-energy days to cover the depleted evenings.
- Protect your capacity in the third trimester, decline nonessential commitments without guilt.
- Keep every prenatal appointment and bring this page to ask what to keep, modify, or drop.
Low-toxin home protocol
- Keep all smoking and vaping out of the home and car.
- Use cold tap water for drinking and cooking, flush taps that have sat, and add a lead/PFAS-certified filter if your home is older or testing shows risk, boiling doesn't remove lead.
- Don't microwave plastic or put hot food in plastic; choose glass, stainless steel, or ceramic.
- Replace scratched nonstick and cook with stainless steel, cast iron, carbon steel, or enameled cast iron.
- Choose fragrance-free cleaners, laundry, and personal care, and skip air fresheners and plug-ins.
- Ventilate when cooking with a range hood, and run a HEPA purifier during smoke or poor air quality.
- Go shoes-off and wet-dust to cut household dust and tracked-in chemicals.
- Avoid pesticide and solvent handling; leave the area during professional treatments and ventilate afterward.
- Test for radon, address mold and moisture, and keep carbon-monoxide alarms working.
- Skip hot tubs, saunas, and hot yoga, and avoid overheating, especially in the first trimester.
The full guide
23 sections
This page is your pregnancy home base on Bread and Marrow. The protocols above are the day-to-day playbook, practical, evidence-based defaults you can follow and adjust with your clinician. The sections below go deeper, and you can search or jump to any of them from the contents list. If you're signed in, the tracker and tools below personalize your targets and let you log weight, symptoms, kicks, and contractions.
Everything here is education to bring to your prenatal visits. It is not medical advice and never replaces your OB, midwife, or clinician.
Helpful docs
Question lists and reference docs to bring to appointments. See all
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