Whey Isolate vs Concentrate
What's the difference and which one is right for you?
Whey protein comes in two main forms: concentrate and isolate. Both are derived from milk, but the manufacturing process differs. This affects protein content, price, and suitability for those with lactose intolerance.
What is whey protein?
Whey is a byproduct of cheese production. The liquid that remains is filtered and dried into whey protein powder. Depending on the level of filtration, you get concentrate or isolate.
Whey Concentrate
Whey concentrate undergoes minimal filtration and typically contains 70-80% protein. It contains more fat, lactose and carbohydrates than isolate, but is also cheaper. For most athletes, concentrate is more than sufficient.
Whey Isolate
Whey isolate is further filtered (microfiltration or cross-flow filtration) raising the protein content to 85-95%. It contains virtually no fat or lactose, making it suitable for those with lactose intolerance.
Comparison
| Whey Concentrate | Whey Isolate | |
|---|---|---|
| Protein content | 70-80% | 85-95% |
| Fat content | 3-5% | <1% |
| Lactose | Contains lactose | Virtually lactose-free |
| Price | More affordable | More expensive |
Which should you choose?
Choose concentrate if you want good value for money and have no issues with lactose. Choose isolate if you're lactose intolerant, want a higher protein percentage, or are on a strict diet where every gram of fat and carbs counts.
Conclusion
Both forms are excellent protein sources for muscle growth and recovery. The main difference lies in purity and price. Compare products on our site to find the best deal.