Foods and herbs that support milk supply

Newborn · Feeding · Reviewed 18 June 2026 · All articles

In the early weeks of breastfeeding, worrying about whether you are making enough milk is one of the most common concerns new mothers share. It is understandable. You cannot measure what your baby is taking, and a fussing baby at the breast can feel like a direct signal that supply has fallen short. This worry is exactly why the internet is full of lists of "milk-boosting" foods and herbal supplements, collectively known as galactagogues.

The reality is more nuanced than most of those lists suggest. Some foods and herbs have a long tradition of use in cultures around the world, and a small number have been studied in clinical settings. But the research base remains limited and the findings are often inconsistent. What we do know, from the World Health Organization, the American Academy of Pediatrics, and the NHS, is that the most powerful driver of milk supply is not what you eat. It is how often and how effectively milk is removed from the breast. Understanding that principle first puts everything else in perspective.

What galactagogues are and what the evidence says

The word galactagogue comes from the Greek for milk and to lead. It refers to any substance, food, herb, or drug, that is believed to initiate, maintain, or increase milk production. Galactagogues have been used across many cultures for centuries. Traditional diets for postpartum women in many parts of the world include specific broths, grains, seeds, and herbal preparations intended to support the transition into full milk production.

From a physiological standpoint, milk production is regulated primarily by two hormones: prolactin, which stimulates the cells in the breast to produce milk, and oxytocin, which triggers the let-down reflex that releases milk to the baby. Some proposed galactagogues are thought to act on prolactin pathways, but the clinical evidence for most herbal and food-based galactagogues is limited to small studies with methodological weaknesses, or to observational and traditional use.

The WHO states clearly that the primary mechanism for establishing and maintaining milk supply is frequent and effective removal of milk from the breast. The AAP echoes this position, noting that galactagogues should be used only after other factors, including latch, feeding frequency, and breast drainage, have been fully addressed. Neither organisation recommends routine supplementation with herbal galactagogues as a first-line strategy.

This does not mean that focusing on nutrition is pointless. It means that no food or herb works as a shortcut around the fundamentals. With that context in place, here is what the evidence says about the most commonly discussed foods and herbs.

Commonly discussed foods and their evidence base

Oats

Porridge and other oat-based foods are among the most widely recommended foods for breastfeeding mothers, and they have a strong nutritional case independent of any galactagogue effect. Oats are a good source of iron, and iron deficiency is associated with fatigue that can make establishing a consistent feeding pattern harder to sustain. They are also rich in beta-glucan, a soluble fibre that some researchers have proposed may play a role in prolactin regulation, though this has not been confirmed in clinical trials.

The evidence for oats as a galactagogue is primarily traditional and anecdotal. Many mothers report subjectively feeling that eating oats regularly supports their supply, and because oats are nutrient-dense, filling, easy to prepare, and safe, including them in your daily diet is a practical low-effort habit. A bowl of porridge in the morning is genuinely good nutrition for a breastfeeding mother, regardless of any direct effect on milk volume.

Fenugreek

Fenugreek is the most studied herbal galactagogue and has been part of traditional postpartum nutrition in many cultures. Some small randomised controlled trials have found that fenugreek tea or capsules modestly increased milk volume compared with placebo, but the trials have been small and the results inconsistent across different studies. A 2018 systematic review noted that while some studies showed a benefit, the overall evidence remains insufficient to make a firm recommendation.

There are also side effects to be aware of. Fenugreek can cause digestive discomfort, including wind and loose stools, in some mothers. It gives both the mother's sweat and the baby's urine a characteristic maple-syrup odour, which is harmless but can be alarming if you do not expect it. There are also reports that some mothers with asthma found their symptoms worsened with fenugreek use. If you are taking medication for diabetes, fenugreek may interact with blood sugar regulation. The NHS recommends checking with your doctor or pharmacist before taking any herbal supplement during breastfeeding.

Blessed thistle

Blessed thistle is often combined with fenugreek in commercial lactation supplement blends. There is very little independent clinical research on blessed thistle as a galactagogue. What exists is primarily anecdotal or embedded in combination-product trials where it is impossible to isolate the effect of the individual herb. The NHS advises caution with all herbal supplements during breastfeeding because the evidence base is thin and the safety of many herbs in breastfeeding has not been adequately studied.

Moringa

Moringa leaf has become increasingly discussed in lactation support conversations. It is highly nutritious, with significant levels of vitamins A, C, and E, calcium, and protein. A small number of studies, some randomised and placebo-controlled, have found that moringa supplementation was associated with increased milk volume in the first days after birth compared with placebo. The WHO has acknowledged moringa as a promising area of research, but notes that larger and more rigorous trials are needed before firm guidance can be given. The NHS lists moringa as one of several herbal supplements for which there is insufficient safety data during breastfeeding.

Fennel

Fennel seed is used in traditional lactation teas and postpartum diets across many cultures. It is thought to act on oestrogen-like pathways, which may influence prolactin levels, but clinical evidence is limited. Fennel in normal culinary quantities, in soups, salads, or teas in typical amounts, is considered safe. Concentrated fennel seed oil or supplements at high doses are not recommended during breastfeeding due to insufficient safety data.

Brewer's yeast

Brewer's yeast is a common ingredient in commercially available lactation cookies and biscuits. It is a source of B vitamins, iron, protein, and chromium. There are no rigorous clinical trials showing that brewer's yeast directly increases milk production. Its presence in lactation baked goods may contribute to the overall nutritional quality of a snack that also contains oats and flaxseed, making it a decent background ingredient in an otherwise nourishing snack rather than an active galactagogue.

Flaxseed

Flaxseed, also called linseed, is a source of omega-3 fatty acids, plant-based protein, and fibre. Its omega-3 content is relevant to breastfeeding because the composition of breast milk reflects the mother's dietary fat intake, and docosahexaenoic acid (DHA) is important for infant brain development. Ground flaxseed in moderation is considered safe during breastfeeding and adds nutritional value to a lactation-friendly diet. The direct evidence for flaxseed increasing milk volume is limited.

What the evidence says actually works

Before adjusting your diet or considering any supplement, the most productive place to focus is on the fundamentals that have a robust evidence base. The AAP and NHS are consistent on this point.

Feed frequently and on demand

Milk supply is governed by demand. The more frequently and completely milk is removed from the breast, the more the body is signalled to produce. Newborns typically need to feed at least eight times in 24 hours, including at night when prolactin levels are naturally higher. Delaying or limiting feeds, or supplementing with formula without medical need, can reduce the stimulus that maintains supply. Offering both breasts at each feed and ensuring the baby fully drains the first breast before switching can also help.

Get the latch right

Ineffective milk transfer, where the baby is not draining the breast well, is one of the leading contributors to perceived low supply. A shallow latch reduces how much milk a baby removes with each feed. The NHS emphasises that a good latch means the baby takes a large mouthful of breast tissue, not just the nipple, and feeding should be comfortable for the mother after the first few seconds of attachment. A lactation consultant can observe a feed and correct latch problems that are easy to miss when you are learning.

Skin-to-skin contact

Skin-to-skin contact, where your baby lies naked against your bare chest, promotes oxytocin release, which supports the let-down reflex and encourages feeding behaviour. The WHO recommends immediate and continuous skin-to-skin contact after birth and promotes it as a key component of early breastfeeding success. Even in the weeks after birth, skin-to-skin time between feeds can support the feeding relationship and help regulate your baby's temperature, heart rate, and stress hormones.

Rest and reduce stress where possible

Severe stress and exhaustion can interfere with the let-down reflex. This is because cortisol and adrenaline can inhibit the action of oxytocin. Accepting help with household tasks, sleeping when your baby sleeps, and having support around feeds can make a measurable difference to how breastfeeding feels, even if the direct effect on volume is difficult to quantify.

Hydration and nutrition

The NHS recommends that breastfeeding mothers drink plenty of fluids, typically around 8 to 10 glasses of water or other non-caffeinated drinks per day, because milk production requires fluid. Severe dehydration can affect milk volume, though normal day-to-day hydration variations are unlikely to cause a significant problem. You do not need to follow a special diet to breastfeed successfully, but eating a varied, balanced diet with adequate calories supports your overall health and energy, which matters enormously when you are feeding around the clock.

What to avoid and cautions

Just as some substances are proposed to increase supply, a small number are associated with reducing it.

Sage is the most commonly cited culprit. It has been used traditionally to help mothers dry up milk when weaning, and some clinical herbalists advise that large quantities of sage, whether in food, tea, or supplements, may decrease supply. Occasional use of sage as a culinary herb in normal cooking quantities is unlikely to be a problem, but medicinal doses or sage tea taken regularly are generally advised against during breastfeeding if maintaining supply is the goal.

Peppermint in very large amounts has been reported anecdotally to reduce supply in some mothers, though the clinical evidence is limited. Menthol-based throat lozenges in large quantities have been associated with anecdotal reports of supply drops. Normal culinary use of peppermint is unlikely to cause an issue.

Smoking tobacco is associated with reduced milk volume and also affects the safety of the breastfeeding environment. The NHS and WHO both advise against smoking during breastfeeding and provide support for stopping.

Regarding herbal supplements more broadly, the NHS and WHO both advise caution. Many herbal products have not been studied adequately in breastfeeding populations. Herbal does not mean safe, and some herbs can have pharmacological effects, interact with medications, or pass into breast milk. Always discuss any supplement with your doctor, midwife, or pharmacist before taking it.

Frequently asked questions

Do oats really increase milk supply?

Oats are one of the most frequently recommended foods for breastfeeding mothers, but the evidence is mostly traditional and observational rather than from controlled clinical trials. They are rich in iron and beta-glucan, and many mothers report feeling that regular oat consumption supports their supply. There is no evidence of harm, so including porridge or oat-based meals in your diet is a low-risk, nutritious choice. Maintaining frequent feeding and effective milk removal remains the most reliable way to protect supply.

Is fenugreek safe to take while breastfeeding?

Fenugreek is the most studied herbal galactagogue and some small studies suggest it may modestly increase milk volume, but the overall evidence is limited and inconsistent. Some mothers also report side effects including digestive upset, a maple-syrup smell in their sweat and their baby's urine, and worsening of asthma symptoms. The NHS and WHO advise caution with herbal supplements during breastfeeding and recommend discussing any supplement with a doctor or pharmacist before starting.

What actually makes the biggest difference to milk supply?

According to the AAP and NHS, milk supply is primarily driven by how frequently and effectively milk is removed from the breast. Feeding on demand, including at night, ensuring your baby has a good latch, and offering skin-to-skin contact are the most reliably effective ways to establish and maintain supply. No food or herb replaces this fundamental supply-and-demand mechanism.

Are there foods that can reduce milk supply?

Sage is the most commonly cited herb associated with reduced milk supply and is traditionally used to help dry up milk when weaning. Peppermint and spearmint in very large quantities have also been reported anecdotally to affect supply, though clinical evidence is limited. Smoking tobacco is associated with reduced milk volume and is harmful to both the mother and the baby.

When should I see a lactation consultant about low milk supply?

You should seek support from a lactation consultant or your midwife or health visitor if your baby is not regaining their birthweight by three weeks of age, is producing fewer than six wet nappies per day after the first few days, seems unsatisfied after every feed, or if you have a persistent feeling that your supply is low. A trained professional can assess the latch, the feeding pattern, and the baby's output and give you personalised guidance that no food or supplement can replace. Do not delay seeking this help in favour of dietary changes alone.

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