When choosing a protein supplement, you’ll come across two main types: isolate and concentrate. Both are made from whey, but the processing technology drastically changes their properties and effects on the body.
Protein Composition and Purity
Protein concentrate contains 70–80% protein; the rest is lactose, fats, and minerals. Protein isolate undergoes additional filtration, so its protein concentration reaches 90–95%. Due to this more thorough purification, isolate contains almost no lactose or fat.
Absorption Rate
Isolate is absorbed faster due to the lower amount of impurities. Peak amino acid concentration in the blood is reached in 30–45 minutes. Concentrate is absorbed more slowly—in 60–90 minutes—which provides longer-lasting muscle nourishment.
Who Should Use Each Type
Isolate is recommended for:
- People with lactose intolerance
- During cutting and weight loss phases
- For rapid post-workout recovery
- Professional athletes
The concentrate is suitable for:
- Beginners in sports
- For building muscle mass
- On a limited budget
- As a source of additional protein in your diet
Price and practicality
Concentrate is 30–50% cheaper due to a simpler production process. Isolate is more expensive but more cost-effective per gram of pure protein. For home use, concentrate is often the best choice, while isolate is indispensable for specific needs.
