🥛 Whey Protein vs Isolate: WPC, WPI, WPH — What to Choose
Three letters on a protein tub decide how much protein and lactose you get
On a protein tub it says WPC, WPI or WPH. These three letters mean the degree of purification and protein content. Let's look at what to choose.
The core difference
All forms are from whey, but with different purification. The more "processing," the higher the protein content.
- All from whey.
- Different purification.
- Different protein.
- Different lactose.
WPC (concentrate)
WPC (whey protein concentrate) is about 70–80% protein. It has more carbs and lactose, but tastes better and is cheaper.
- 70–80% protein.
- More lactose.
- Tastes better.
- Cheaper.
WPI (isolate)
WPI (whey protein isolate) is 90%+ protein. Minimal lactose, suits intolerance.
- 90%+ protein.
- Minimal lactose.
- For intolerance.
- Pricier.
WPH (hydrolysate)
WPH (whey protein hydrolysate) is already partially broken down. Absorbs faster, but costs more and is slightly bitter.
- Partially broken down.
- Absorbs faster.
- Pricier.
- Slightly bitter.
Comparison
| Form | Protein | Lactose | Price |
|---|---|---|---|
| WPC | 70–80% | More | Cheaper |
| WPI | 90%+ | Minimal | Pricier |
| WPH | 90%+ | Minimal | Most expensive |
Lactose
WPC has more lactose. With intolerance, choose WPI or WPH — they have minimal lactose.
- WPC — more lactose.
- WPI — minimal.
- WPH — minimal.
- With intolerance.
Dosage
| Parameter | Recommendation |
|---|---|
| Serving | 1 scoop |
| Per day | 1–2 times |
| Protein/serving | 20–30 g |
Practice
- Beginners — WPC.
- With lactose — WPI.
- After workout — WPH.
- Don't replace all food with protein.
- Watch calories.
- Consult a doctor.
What does WPC mean?
Whey protein concentrate, 70–80% protein.
What does WPI mean?
Isolate, 90%+ protein, minimal lactose.
What does WPH mean?
Hydrolysate, protein partially broken down.
Which is better: concentrate or isolate?
For most — concentrate; with lactose — isolate.
Is there much lactose in protein?
More in WPC, minimal in WPI/WPH.
When to take it?
After a workout or between meals.
How much protein per serving?
Usually 20–30 g.
Is protein needed?
Yes, if there's a protein gap in the diet.
Is protein harmful?
In normal doses, safe for healthy people.
When is a doctor needed?
With kidney diseases and intolerance.