What it is
What should I eat? It is one of the first questions after a positive test. A pregnancy diet is a real food diet with a few nutrients turned up. You are building a whole person, a placenta, and about half again as much blood. That takes protein, iron, choline, folate, iodine, omega-3 fats, and vitamin D.
Calories matter less than people think. The first trimester needs almost none extra. The second needs about 340 more a day, the third about 450. That is a snack and a half, not a second dinner.
Nausea, aversions, and exhaustion get in the way of all this. Eating what stays down in the first trimester is fine. The pregnancy is long.
What's typical
A typical day many dietitians sketch looks like this. Protein at each meal: eggs, meat, fish, beans, dairy. A vegetable or fruit at most meals. Fat you enjoy: butter, olive oil, avocado, nuts. Slow carbs like potatoes, oats, rice, and beans. Two servings of low-mercury fish a week. Water through the day. By the third trimester most mothers eat small meals every two to three hours, because a full stomach has nowhere to go.
What's known
ACOG's guidance centers on a balanced plate, a prenatal vitamin, and food safety. Lily Nichols, a dietitian who reviewed the research for her book 'Real Food for Pregnancy,' argues the standard advice is too low on protein, choline, and fat and too high on refined carbs. The two views agree on most things: whole foods, enough protein, fish, eggs, greens. Traditional diets, recorded by Weston Price in the 1930s, fed pregnant women the richest foods a culture had: organ meats, eggs, fish, broth, fermented foods.
What helps
- Aim for protein first at every meal and snack. The rest falls into place.
- Keep eggs, cheese, yogurt, nuts, and fruit on hand for the hours when cooking is too much.
- Choose fish low in mercury: salmon, sardines, trout, shrimp, canned light tuna.
- If you do not want to cook, Mothership's meals are built on this list. So is a good freezer plan.
- Let the first trimester be whatever stays down. Make it up later.
When to call someone
- Nownot an emergency topic. Severe belly pain or vomiting blood is an ER call.
- Todayyou cannot keep food or water down for 24 hours, or you are losing weight fast.
- At your next visityou eat vegan or vegetarian, you have food allergies or a history of an eating disorder, or you are not gaining weight by 20 weeks. Ask for a dietitian referral.
Who helps
Tools: Postpartum Meal Planner · Birthworker Directory
Related
- Protein: how much and from wherePregnancy: Eating
- Iron-rich foods and how to absorb themPregnancy: Eating
- Choline: the nutrient nobody mentionsPregnancy: Eating
- Food safety: listeria, mercury, raw foodsPregnancy: Eating
- Eating when nothing sounds goodPregnancy: Eating
- Traditional pregnancy foods across culturesPregnancy: Eating
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Sources
- American College of Obstetricians and Gynecologists — Nutrition during pregnancy FAQ
- Lily Nichols RDN — Real Food for Pregnancy
- U.S. Department of Agriculture — Dietary Guidelines for Americans, pregnancy and breastfeeding chapter
- U.S. Food and Drug Administration — Advice about eating fish
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