Hidden names for milk on ingredient labels
Ingredients that come from milk include whey, casein, caseinates (sodium or calcium caseinate), lactalbumin, lactoglobulin, lactoferrin, lactose, ghee, butterfat, curds and milk solids. On most US packaged foods the label must also say "milk", in brackets or a Contains statement. Cocoa butter, cream of tartar and coconut milk sound like dairy but aren't.
Why these names matter
US law requires most packaged foods to name milk as the source, for example "whey (milk)" or "Contains: milk". But the rules don't cover everything, such as foods from a deli counter, many imported products or meat products regulated by the USDA. Knowing the names helps wherever the word "milk" might not appear.
Ingredients made from milk
| Name | What it is |
|---|---|
| Whey, whey protein, acid whey, sweet whey | The liquid part of milk left after making cheese |
| Casein, caseinate, sodium caseinate, calcium caseinate | The main milk protein, often used in "non-dairy" products |
| Lactalbumin, lactoglobulin, lactoferrin | Milk proteins |
| Lactose, lactitol | Milk sugar, and a sweetener made from it |
| Hydrolyzed milk protein, Recaldent | Processed milk protein |
| Butter, butterfat, butter oil, ghee | Milk fat |
| Milk solids, milk powder, dry milk, milkfat | Concentrated milk |
| Cream, sour cream, half-and-half | Dairy |
| Cheese, curds, yogurt, kefir | Fermented or cultured milk |
| Custard, pudding | Usually made with milk |
Names that sound like milk but aren't
- Cocoa butter: fat from the cocoa bean
- Cream of tartar: a by-product of winemaking
- Coconut milk, coconut cream, almond milk, oat milk, rice milk: plant-based (but check almond milk if you avoid tree nuts)
- Butter beans: a type of bean
Check the full label anyway, since a plant-based product can still contain milk elsewhere in its recipe.
Let SafeScan do the matching
SafeScan's allergen dictionary covers every name above and more, and it excludes the false alarms. Scan a barcode or the ingredient label and every milk-derived ingredient is flagged with the reason. Paste any ingredient list into our free allergen ingredient checker to try it.
This guide is general information based on US labeling rules, not medical advice. Talk to your doctor or allergist about your own allergies, and always read the label on the package in your hand.
Never miss a milk ingredient
SafeScan matches whey, casein, caseinates, lactalbumin, ghee and dozens of other names to milk, and skips false alarms like cocoa butter. Add lactose or casein as extended allergens if you need to track them separately.
Download on the App StoreFree to download for iPhone and iPad. No account needed, and your profiles and scan history stay on your device.
Frequently asked questions
Is lactose-free the same as milk-free?
No. Lactose-free products have the milk sugar removed or broken down, but they're still made from milk and still contain milk protein, which is what causes a milk allergy.
Is non-dairy the same as dairy-free?
Not always. Some products labeled non-dairy, such as certain creamers, contain caseinates, which come from milk. Read the ingredient list and the Contains statement.
Does butter contain milk?
Yes. Butter, butterfat, butter oil and ghee are all made from milk.