🏷️ Additives

Acesulfame-K (acesulfame potassium) is a calorie-free sweetener found in many diet beverages and processed foods. It does pass into breast milk in small amounts — one study found measurable levels — but current evidence does not suggest harm to nursing infants at normal dietary intake. It's approved by the FDA and considered safe while breastfeeding.

Annatto is a natural food coloring derived from the seeds of the achiote tree, giving foods a yellow-orange hue. It's found in butter, cheese, cereals, and snack foods. It's considered safe while breastfeeding. In rare cases, annatto has been associated with food intolerance reactions, but this is uncommon.

Aspartame is one of the most extensively studied food additives in history and is considered safe to consume in normal amounts while breastfeeding. It breaks down into phenylalanine, aspartic acid, and methanol before being absorbed — very little reaches breast milk. The one exception: mothers with PKU (phenylketonuria) must avoid aspartame.

BHA (butylated hydroxyanisole) and BHT (butylated hydroxytoluene) are antioxidant preservatives used in cereals, chips, and packaged foods to prevent rancidity. They are FDA-approved as GRAS and present in such small amounts in food that they are not a concern for breastfeeding mothers at normal dietary intake. If you prefer to minimize them, choosing whole or minimally processed foods is an easy way to do so.

Blue 1 is a synthetic food dye used in candies, beverages, and baked goods. It is FDA-approved and considered safe for breastfeeding mothers. Its transfer into breast milk is minimal and not considered a concern. Enjoy your blue Gatorade without guilt.

Carrageenan is a natural thickener derived from red seaweed, used in dairy products, nut milks, and processed foods. For breastfeeding mothers consuming it in food, the amount that could transfer to breast milk is negligible. It is FDA-approved for use in food. The controversy around carrageenan mainly concerns its use in infant formula, which is separate from maternal consumption.

Meats labeled 'uncured' or 'nitrate-free' that use celery powder are safe while breastfeeding — but know that celery powder is actually a source of naturally occurring nitrates that convert to nitrites during processing. The end product is chemically similar to conventionally cured meats. Both are fine for nursing mothers in normal amounts.

Citric acid is perfectly safe while breastfeeding. While it sounds 'chemical,' it's the same acid naturally found in lemons and oranges. As a food additive, it's used as a preservative and flavor enhancer in countless products. It's one of the most thoroughly studied food additives with an excellent safety record.

Erythritol is a sugar alcohol found naturally in some fruits and fermented foods. It's poorly absorbed by the body and mostly excreted unchanged in the urine, meaning very little reaches breast milk. It is FDA-approved as GRAS and considered safe while breastfeeding. Large amounts can cause digestive discomfort (bloating, gas) in some people.

Guar gum is a natural thickener and stabilizer derived from guar beans. It's found in ice cream, yogurt, sauces, and gluten-free products. It's safe during breastfeeding — it's a soluble fiber that passes through the digestive system and doesn't absorb into your bloodstream or breast milk.

High fructose corn syrup (HFCS) is metabolized by the body similarly to regular table sugar and does not pose a specific breastfeeding risk. Consuming it in large amounts — as with any added sugar — isn't great for overall health, and high sugar diets may affect the flavor and nutrient profile of breast milk over time. In normal amounts, it is safe for nursing mothers.

Maltodextrin is a safe, common food additive made from starch (usually corn, rice, or potato). It's used as a thickener, filler, or sweetener in many processed foods, infant formulas, and sports drinks. It's quickly digested into glucose and poses no special concern while breastfeeding.

Monk fruit sweetener is derived from monk fruit (luo han guo) and is FDA-approved as GRAS. It has a long history of use in traditional Chinese medicine as a food ingredient. There is very limited data on breast milk transfer specifically, but given its natural origin and minimal absorption, it is generally considered safe to use while breastfeeding.

MSG is safe while breastfeeding. Despite decades of misplaced fear, MSG is simply the sodium salt of glutamate — an amino acid that occurs naturally in tomatoes, parmesan cheese, mushrooms, and breast milk itself. The FDA classifies it as generally recognized as safe (GRAS). It does not cause the so-called 'Chinese restaurant syndrome.'

Polysorbate 80 is a common emulsifier found in ice cream, sauces, pharmaceuticals, and cosmetics. At levels used in food (FDA-regulated), it's considered safe during breastfeeding. It helps ingredients mix smoothly and is widely used in the food industry. Recent research on gut microbiome effects is ongoing, but current evidence supports safety at approved food-use levels.

Potassium sorbate is a safe, widely used food preservative that inhibits mold and yeast growth. Found in cheese, yogurt, wine, baked goods, and personal care products, it's metabolized like a fatty acid and poses no known risk during breastfeeding at normal dietary levels.

Red 40 is the most widely used food dye in the United States, found in candies, sodas, and processed snacks. It is FDA-approved and considered safe for breastfeeding mothers. While some research links synthetic food dyes to hyperactivity in children when eaten directly, transfer through breast milk is negligible. You can enjoy foods with Red 40 without concern.

Saccharin is the oldest artificial sweetener and is generally recognized as safe by the FDA. However, it passes into breast milk and is slowly cleared by infants. While current evidence doesn't show clear harm, it's reasonable to use it sparingly and favor other sweeteners if you use them frequently.

Sodium benzoate is a widely used preservative found in soft drinks, pickles, sauces, and many processed foods. At levels approved by the FDA, it's considered safe during breastfeeding. Your body metabolizes it quickly — it's converted to hippuric acid and excreted by the kidneys. No concerns at normal dietary levels.

Sodium nitrate and nitrite are preservatives used in cured and processed meats like bacon, hot dogs, and deli meat. They're safe for nursing mothers in typical amounts — your body also produces nitrates naturally. However, heavy consumption of processed and cured meats is generally discouraged for overall health reasons, and these foods were already a caution during pregnancy for other reasons.

Soy lecithin is a common emulsifier found in chocolate, baked goods, and many packaged foods. It is safe to consume while breastfeeding. Importantly, soy lecithin is highly processed and contains minimal soy protein — making it generally tolerated even by those with soy allergies. Sunflower lecithin is also safe and is actually sometimes recommended to breastfeeding mothers to help prevent plugged ducts.

Stevia — derived from the leaves of the Stevia rebaudiana plant — is a natural, zero-calorie sweetener that is FDA-approved as GRAS (generally recognized as safe). It is safe to use while breastfeeding in normal amounts. There is very little data on transfer to breast milk, but given its minimal absorption and natural origin, it is widely considered a safe option for nursing mothers.

Sucralose (sold as Splenda) is a non-nutritive sweetener made from sugar that is poorly absorbed by the body. Only a small amount is absorbed and an even smaller amount reaches breast milk. Current evidence indicates it is safe to use in normal amounts while breastfeeding. It's one of the most commonly used sweeteners and has a good safety record.

Sulfites are preservatives used in wine, dried fruits, and some processed foods. For most breastfeeding mothers, consuming foods with sulfites is safe. Those with sulfite sensitivity or asthma may experience reactions themselves, but transfer through breast milk at typical dietary levels is not considered a risk to nursing infants.

Titanium dioxide is a white pigment used in candies, chewing gum, baked goods, and supplements. The EU banned it as a food additive in 2022 over concerns about genotoxicity from nanoparticles, though the FDA still permits it. Given the regulatory disagreement, moderate caution is reasonable while breastfeeding — reducing intake of heavily whitened foods is a simple precaution.

Xanthan gum is safe while breastfeeding. It's a common thickening agent found in salad dressings, sauces, gluten-free baked goods, and many other processed foods. It passes through the digestive system largely undigested and doesn't meaningfully absorb into your bloodstream or breast milk.

Xylitol is a sugar alcohol found naturally in many fruits and vegetables. It's widely used in sugar-free gum and dental products due to its cavity-fighting properties. It is FDA-approved as GRAS and safe to consume while breastfeeding in typical amounts. Like other sugar alcohols, large quantities may cause digestive upset. Keep it away from dogs, who are extremely sensitive to xylitol.

Yellow 5 (tartrazine) is a common synthetic food dye used in beverages, snacks, and condiments. It is FDA-approved and considered safe for breastfeeding mothers. In rare individuals, tartrazine can trigger allergic reactions (including in people with aspirin sensitivity), but transfer through breast milk is not a significant concern. FDA requires it to be listed on labels.

Yellow 6 is a synthetic azo dye used in processed foods, beverages, and candy. It is FDA-approved and considered safe for breastfeeding mothers. Like other synthetic dyes, the amount that transfers into breast milk is negligible. You can eat foods containing Yellow 6 without worry while nursing.