Is Whey Protein Gluten Free?

Check the Label
Most whey protein isolate is gluten free, but concentrate may contain gluten depending on additives and processing.
Whey isolate is usually safe (90%+ protein, minimal additives). Whey concentrate may contain additives, thickeners, or flavourings that are gluten-derived.

Coeliac Disease

Choose whey isolate and verify the label for GF certification. Avoid concentrate unless certified GF.

Gluten Sensitivity (NCGS)

Safe if certified GF. Check for additives that may cause reactions.

Why Does Whey Protein Sometimes Contain Gluten?

Whey itself is gluten free, but additives, flavourings, and anti-caking agents may contain gluten. Concentrates have more additives than isolates.

Australia vs United States

Australia (FSANZ)

FSANZ requires checking. Many whey isolates are certified GF.

United States (FDA)

FDA allows whey, but check for additives.

Nutrition Information

Nutrition Facts
Per 100g ยท Typical serve: 100 g (concentrate, powder)
Energy1548 kJ / 370 kcal
Protein80.0g
Fat, total3.0g
Saturated fat1.5g
Carbohydrate8.0g
Sugars3.0g
Dietary fibre0.0g
Sodium250mg

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

Additives, anti-caking agents, flavouring compounds, modified starches.

Gluten Free Alternatives

If you need a gluten free substitute, consider: Whey isolate (certified GF), plant-based proteins (hemp, pea).

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 Whey Protein gluten free?

Whey isolate is usually safe (90%+ protein, minimal additives). Whey concentrate may contain additives, thickeners, or flavourings that are gluten-derived.

Can coeliacs eat whey protein?

Choose whey isolate and verify the label for GF certification. Avoid concentrate unless certified GF.

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, whey protein brand labels

Last reviewed: May 2026