Is Casein Gluten Free?

Check the Label
Pure casein is gluten free, but commercial casein supplements may contain additives.
Casein protein is derived from milk and is naturally gluten free. Commercial products may contain additives, thickeners, or flavourings that are gluten-derived.

Coeliac Disease

Choose unflavoured casein or certified GF varieties. Check labels for additives.

Gluten Sensitivity (NCGS)

Safe if certified GF or unflavoured.

Why Does Casein Sometimes Contain Gluten?

Casein itself is a milk protein with no gluten. Additives introduce risk.

Australia vs United States

Australia (FSANZ)

FSANZ requires checking. Many casein products certify GF.

United States (FDA)

FDA allows casein, but check for additives.

Nutrition Information

Nutrition Facts
Per 100g ยท Typical serve: 100 g (powder)
Energy1506 kJ / 360 kcal
Protein88.0g
Fat, total1.0g
Saturated fat0.5g
Carbohydrate3.0g
Sugars1.0g
Dietary fibre0.0g
Sodium40mg

Source: USDA FDC. Values are for the generic food in its standard form. Branded products may vary. Always check the product label for the most accurate nutrition information.

What to Watch For

Flavourings, additives, anti-caking agents, modified starches.

Gluten Free Alternatives

If you need a gluten free substitute, consider: Pure casein powder (unflavoured), milk-based foods.

Medical disclaimer: This is general information about gluten content, not medical advice. If you have coeliac disease, non-coeliac gluten sensitivity, or a wheat allergy, always consult your doctor or accredited practising dietitian before making dietary changes. Product formulations change. Always read the label.

Frequently Asked Questions

Is Casein gluten free?

Casein protein is derived from milk and is naturally gluten free. Commercial products may contain additives, thickeners, or flavourings that are gluten-derived.

Can coeliacs eat casein?

Choose unflavoured casein or certified GF varieties. Check labels for additives.

Related Foods in Dairy

Milk (Plain) Flavoured Milk Cheese (Plain and Hard Varieties) Cream Cheese Cottage Cheese Blue Cheese Processed Cheese Slices Butter

More from RefDat

Explore more reference data at refdat.com.

How We Verify This

Every food in our database is reviewed against current FSANZ and FDA gluten-free standards. Brand data is verified against manufacturer labelling. We cross-reference with Coeliac Australia ingredient lists and the USDA FoodData Central database. When Australian and US standards differ, we apply the stricter standard.

Sources

FSANZ, casein product labels

Last reviewed: May 2026