Both come from milk and both are complete proteins. The difference is how much filtering they go through, and that changes the protein content, the lactose and the price.
The short version
- Whey concentrate is typically around 70 to 80% protein by weight, with some fat and lactose left in.
- Whey isolate is filtered further to 90% protein or more, with very little fat and lactose.
- Isolate usually costs more because of the extra processing.
Pick whey or a whey blend if
- You want the best price per serve.
- You digest dairy without trouble.
- Your goal is general muscle gain and recovery.
Shop whey protein powder, or try Rule 1 Whey Blend.
Pick isolate if
- You are cutting and want more protein for fewer carbs and fats.
- Regular whey sits heavy or you are sensitive to lactose.
- You want a lighter shake straight after training.
Shop whey protein isolate, such as Dymatize ISO100.
What matters more than the type
Your total protein for the day matters more than which whey you choose. The International Society of Sports Nutrition puts the range for most people who exercise at 1.4 to 2.0 grams of protein per kilo of body weight a day.
If you have a milk allergy, neither is suitable. Look at plant based protein instead.
More guides
Visit Supps247 Ringwood
135 Maroondah Hwy, Ringwood VIC 3134. Open 7 days. Store details, hours and directions.
We beat any price by 5%. Applies to identical in-stock items from Australian retailers. Excludes clearance, bundles and member-only pricing.
This is general information, not personal medical advice. Always read the label and use as directed.
