Most women trying to conceive know about folic acid. Fewer know about choline — a nutrient that supports normal fetal brain and spinal cord development, and one that many prenatal vitamins contain in small amounts or not at all. If you are comparing a TTC supplement or prenatal, here is what to check.
This is educational, not medical advice. For the full buying overview, see fertility supplements to get pregnant.
1. Why choline matters before and during pregnancy
Choline is an essential nutrient used for cell membranes and for acetylcholine, a messenger in the nervous system. During pregnancy, demand rises because choline supports the baby’s developing brain and neural tube. Because the neural tube forms very early — often before a positive test — intake in the months before conception matters too.
2. How much: NIH intake levels
| Group | Adequate Intake (AI) per day |
|---|---|
| Women 19+ | 425 mg |
| Pregnancy | 450 mg |
| Breastfeeding | 550 mg |
| Men 19+ | 550 mg |
| Upper level (adults) | 3,500 mg |
Source: NIH Office of Dietary Supplements. Check current figures on the NIH ODS site. Above the upper level, side effects can include a fishy body odor, sweating, stomach upset and low blood pressure.
3. Food first: where choline comes from
- Eggs — one large egg provides roughly 150 mg, mostly in the yolk.
- Meat, poultry and fish such as beef, chicken and salmon.
- Plant sources — soybeans, beans, quinoa, broccoli and potatoes contribute smaller amounts.
If you eat few eggs or animal foods, it is easier to fall short. See vegan and vegetarian fertility supplements for the other nutrients to watch.
4. Prenatal or TTC supplement: 5 label checks for choline
- Is choline listed at all? Many prenatals leave it out or include a small amount, partly because it is bulky in a capsule.
- Choline vs the compound: labels may show choline bitartrate, choline chloride or phosphatidylcholine. Check whether the mg figure is for choline itself or for the whole compound — they are not the same.
- Add up your total from food, prenatal and any extra product. Most people stay far below the 3,500 mg upper level, so the usual problem is too little, not too much.
- Avoid duplicating a separate choline product with a prenatal that already has it — see what to take and what’s redundant.
- Third-party testing (USP, NSF or a certificate of analysis); in Canada, look for an NPN. For any AGO product, ask the care team for the full label — they share it on request.
5. Where AGO fits in your TTC routine
- Keep your prenatal for folic acid, iodine and the other basics your doctor recommends. AGO formulas are designed to support reproductive wellness alongside it — see AGO Mom vs prenatal vitamins.
- Fill gaps with food first, then ask your doctor whether a choline supplement makes sense for you.
- Include him: men need choline too, and sperm takes about 2–3 months to develop. See fertility supplements for couples.
- After a positive test, review everything with your OB — see what to keep and what to stop.
Results vary and no supplement guarantees pregnancy. Get a free personalized plan and our care team will help you build a simple routine to review with your doctor.
FAQ
How much choline do I need while trying to conceive?
The NIH Adequate Intake is 425 mg per day for women 19 and older and 450 mg per day during pregnancy, from food and supplements combined.
Does my prenatal vitamin have enough choline?
Many prenatal vitamins contain little or no choline. Check the label for choline and whether the amount refers to choline itself or to a compound such as choline bitartrate.
Can you take too much choline?
The adult upper level is 3,500 mg per day. Above it, side effects can include fishy body odor, sweating, stomach upset and low blood pressure.
What foods are high in choline?
Eggs are one of the richest common sources, at roughly 150 mg per large egg. Meat, poultry, fish, soybeans and beans also provide choline.
Can I take AGO Mom with a prenatal that has choline?
Ask the AGO care team for the AGO Mom label and review it with your doctor so you can check totals and avoid doubling up.