What is the cheapest whey isolate in Canada?
Last updated October 16, 2026
Independently compared
Whey isolate (WPI) is filtered further than regular whey: a bit more protein per serving and less lactose, fat and carbs. Ideal if you watch your macros or struggle with lactose. We line up the whey isolates of all the Canadian shops we track, compared by price per kilo, discounts already included.
Which whey isolate is the cheapest per kilo right now?
The prices and order above update automatically as soon as a brand changes its price or a new deal goes live. So you always see the current state, not a snapshot from months ago.
What should you look out for?
Isolate is usually a bit pricier than concentrate. Think about whether you need the difference: if you watch lactose or your fat intake, isolate is the better choice; otherwise a concentrate is often cheaper per gram of protein.
Frequently asked questions
What is the cheapest whey isolate in Canada?
The list above is live: the order changes with the discounts.
What is the difference between whey isolate and concentrate?
Isolate is filtered further, contains a bit more protein and less lactose, fat and carbs. Concentrate is cheaper and perfectly fine for most people. The lowest price per kilo for concentrate: the cheapest whey protein.
Is whey isolate suitable with a lactose intolerance?
Mostly, yes. The extra filtering leaves very little lactose, often under 1 gram per serving.
Is the extra for isolate worth it?
Only if you watch lactose or your fat and carb intake, or want the higher protein per serving. Otherwise a good concentrate is often the smarter choice per gram of protein.
Clear whey or regular isolate?
Both are whey isolate. Clear whey drinks like a juice instead of a milkshake and sits lighter in the stomach, but usually costs a bit more per kilo.