Choline and breastfeeding: what it does, how much you need and food sources

Choline is an essential nutrient that helps your body build cell membranes, transport fats and support normal nervous system function. During breastfeeding, some choline passes into breast milk, increasing your dietary needs. Australian guidance recommends an Adequate Intake of 550 mg a day for breastfeeding adults aged 19–50.

If you’re looking into nutrition during breastfeeding, choline deserves a place in the conversation. Understanding it can help you make practical food choices without adding another complicated routine to your day.

What is choline, and what does it do?

Choline is a nutrient found in both animal and plant foods. Your liver makes some, but not enough to meet your body’s needs.

Your body uses choline to make the membranes surrounding cells and acetylcholine, a chemical messenger involved in normal nerve and muscle function. It also helps transport and metabolise fats. NIH choline fact sheet

These are established functions of the nutrient. They do not mean that taking additional choline will necessarily improve how you feel or produce a particular health outcome.

Why does choline matter during breastfeeding?

Breast milk naturally contains choline in several forms. Because choline is transferred into milk, the recommended maternal intake is higher during breastfeeding than during pregnancy or other stages of adulthood.

Australian and New Zealand guidance gives the following Adequate Intakes for adults aged 19–50:

These figures refer to total intake from food and supplements combined, rather than a recommended supplement dose. Different values apply to teenagers. Australian and New Zealand nutrient reference values

An Adequate Intake is a guide used when there is not enough evidence to establish a more precise requirement. Eating below it does not automatically mean you are deficient.

Are women getting enough choline?

Research suggests that many women consume less choline than intake guidance during pregnancy and breastfeeding.

In an Australian pregnancy cohort, approximately 23% of participants met the 440 mg daily benchmark. In a US study of breastfeeding women, average dietary intake was around two-thirds of the 550 mg breastfeeding benchmark. Australian pregnancy study, breastfeeding study

These findings make choline worth paying attention to. They do not establish that all women below the benchmark are deficient, or that their babies are receiving insufficient choline.

The practical question is whether your usual meals include a variety of choline-containing foods.

What does the research show about choline in breast milk?

A systematic review and meta-analysis covering 17 studies and 1,747 women estimated that total milk choline increased from approximately 71 mg per litre in colostrum to 145 mg per litre in mature milk, with a higher intermediate estimate during transitional milk. Colostrum is the early milk produced after birth.

These are pooled research estimates describing changes across lactation. They are not targets for an individual mother’s milk, and they are not a test of milk quality. Measurements varied between studies, including with laboratory methods and geographical region. Systematic review of milk choline

Research also shows that maternal choline intake can influence concentrations of some choline compounds in breast milk. Responses differ between compounds and individuals. Maternal-intake trial

What does this evidence not establish? A change in milk composition does not, by itself, demonstrate improved infant health or development. These studies also do not establish a supplement dose that every breastfeeding woman should take.

Which foods contain choline?

Eggs, meat, poultry, fish, dairy foods, soybeans, beans and some vegetables contribute choline.

Here are several examples:

Amounts vary with the food, portion and preparation. These examples use the NIH food-composition table.

You don’t need to build every meal around one nutrient. Practical ways to include these foods might be:

• A cooked egg with toast for breakfast.

• Kidney beans and quinoa in a lunch bowl.

• Roasted soybeans as a snack, if suitable for you.

• Chicken and broccoli alongside your usual dinner.

These are meal ideas, rather than a complete daily eating plan. Choose foods that suit your preferences, allergies, budget and cultural eating patterns.

Do you need a choline supplement while breastfeeding?

That depends on your usual diet, individual needs and any supplements you already take.

A prenatal or postnatal supplement does not automatically contain choline. Check the label rather than assuming it covers your intake. More is not always better: excessive choline intake can cause adverse effects. NIH choline guidance

A GP or Accredited Practising Dietitian can help assess your food intake and decide whether supplementation is appropriate. Bring the labels of everything you already take so they can consider the combined amounts.

When should you seek individual nutrition advice?

Speak with your GP, midwife or an Accredited Practising Dietitian if:

• Persistent nausea, poor appetite or other difficulties limit how much you can eat.

• Allergies or dietary restrictions exclude several food groups.

• You follow a vegan diet and would like help planning your intake.

• You are considering adding a supplement or combining several products.

• You are concerned about your own health, feeding or your baby’s growth.

Concerns about feeding or growth deserve an individual assessment rather than a change in one nutrient alone.

Common questions about choline and breastfeeding

Is choline naturally present in breast milk?

Yes. Human milk contains several forms of choline, and their concentrations change across lactation. The amounts reported in studies vary, so a research average should not be treated as an individual milk-quality benchmark. Milk-choline review

Can you get choline from plant foods?

Yes. Soybeans, kidney beans, quinoa, broccoli, nuts and seeds can contribute. A dietitian can help you plan a varied plant-based diet that considers choline alongside your other nutritional needs. NIH food sources

Does eating below 550 mg mean you are deficient?

No. The 550 mg figure is an Adequate Intake for breastfeeding adults aged 19–50, not a diagnostic threshold. Your usual eating pattern and personal circumstances need to be considered together. Australian nutrient reference values

Does choline replace other pregnancy or breastfeeding nutrients?

No. Choline is one part of overall nutrition. Its role does not replace the need for other nutrients or any supplementation recommended by your treating health professional.

At Honour Wellness, we believe mothers deserve clear information about nourishment. You can read more about our purpose and explore our motherhood resources.

This article provides general nutrition information and does not recommend a specific product. Speak with a qualified health professional for advice suited to your circumstances.

Written by Honour Wellness  
Published 25 October 2026