There is no scientific evidence that Oreos increase breast milk supply. The idea that Double Stuf Oreos boost lactation is internet lore, not nutrition science. Vanderbilt Health has directly addressed this claim, noting that while Oreos are widely attributed to increased milk supply online, no research supports it. So why do so many breastfeeding parents swear by them? A few plausible explanations exist, and they’re worth understanding.
Where the Oreo Myth Came From
The Oreo-milk supply connection spread through breastfeeding forums, TikTok, and Facebook groups, where parents shared anecdotal stories about eating Double Stuf Oreos and noticing more milk at their next pumping session. These stories are compelling because they feel personal and immediate. But correlation during the postpartum period is tricky. Milk supply fluctuates throughout the day based on hydration, stress, how recently you nursed or pumped, and dozens of other variables. Eating a few cookies and then pumping more milk an hour later doesn’t establish cause and effect.
The phenomenon is similar to the Blue Gatorade myth, another breastfeeding internet favorite with no clinical backing. Both likely gained traction because they’re specific, easy to try, and inexpensive, which makes them spread quickly in online communities.
Why Calories Matter During Breastfeeding
One reason Oreos might genuinely help some people is simpler than it sounds: calories. The CDC recommends that breastfeeding mothers consume an additional 330 to 400 calories per day compared to what they ate before pregnancy. That number shifts depending on your age, activity level, body mass index, and whether you’re exclusively breastfeeding or supplementing with formula.
Many new parents are sleep-deprived, overwhelmed, and undereating without realizing it. A few Oreos provide a quick caloric boost that could help close a gap between what your body needs and what you’re actually consuming. If inadequate calorie intake was subtly suppressing your supply, eating any calorie-dense snack could make a noticeable difference. The Oreos aren’t doing anything special here. A granola bar, a handful of nuts, or a bowl of cereal would do the same thing.
The Role of Soy Lecithin
Some people point to soy lecithin in Oreos as the active ingredient behind the milk supply boost. Oreos do contain soy lecithin, which acts as an emulsifier to keep the cookie’s fat and other ingredients blended together. Lecithin supplements have been recommended by some lactation professionals as a treatment for plugged milk ducts, according to the National Library of Medicine’s LactMed database. The idea is that lecithin may reduce the stickiness of breast milk, helping it flow more easily and preventing blockages.
However, the amount of soy lecithin in an Oreo is tiny, used as a processing aid rather than a meaningful nutritional component. Taking a lecithin supplement delivers a standardized dose measured in grams. Eating cookies delivers a trace amount alongside sugar, refined flour, and palm oil. If you’re interested in lecithin for plugged ducts, a supplement would be a far more reliable approach than trying to get enough from cookies.
How Oreos Compare to Lactation Cookies
Lactation cookies are a separate category worth distinguishing from regular Oreos. According to Texas Children’s Hospital, the most consistent ingredients in lactation cookie recipes are brewer’s yeast, flaxseed, and oats. Each of these brings something nutritionally meaningful to the table. Just one tablespoon of flaxseed provides protein, fiber, omega-3 fatty acids, and a range of vitamins and minerals. Brewer’s yeast is an excellent source of iron, protein, and B vitamins. Oats are a good source of iron as well.
Oreos contain none of these ingredients. They’re made primarily from sugar, enriched flour, and palm or canola oil. While the evidence for lactation cookies themselves is still mostly anecdotal, at least their key ingredients have recognized nutritional value that could support a breastfeeding body. Oreos don’t offer that same profile.
The Comfort and Relaxation Factor
There’s one more explanation worth considering: stress reduction. Oxytocin, the hormone responsible for the milk ejection reflex (the “let-down”), is sensitive to stress and relaxation. Sitting down, eating something enjoyable, and taking a brief mental break can genuinely help milk flow more easily during a pumping or nursing session. If eating Oreos is a small moment of pleasure in an exhausting day, that relaxation response could have a real, measurable effect on how much milk you express in that sitting.
This doesn’t mean Oreos are a galactagogue. It means that any enjoyable, low-stress ritual, whether it’s a cookie, a warm drink, or five minutes of quiet, can support the hormonal environment that makes let-down easier.
What Actually Supports Milk Supply
Milk production works on a supply-and-demand system. The most reliable ways to maintain or increase supply are frequent, effective milk removal (nursing or pumping), adequate hydration, sufficient calorie intake, and rest. If you’re concerned about low supply, the frequency and thoroughness of milk removal matters far more than any specific food.
If you enjoy Oreos and they help you eat enough calories during a demanding time, there’s no reason to stop. But if you’re relying on them as a strategy for low supply, you’re likely missing more effective approaches. The cookies aren’t hurting anything, but they’re not the reason your supply changes.