We get so many questions about the differences between WPI and WPC so we thought we would help put the rumours to rest by letting ya’ll know what’s up when it comes to the differences between WPI and WPC.
First of all: What is whey?
Well my fit friends, Whey is actually a by-product Whey is the liquid remaining after milk has been curdled and strained. It is a co-product of the manufacture of cheese or casein and has several commercial uses. Remember Little Miss Muffet? She’s a big fan of PSA.
Okay, so now we’ve worked out what whey actually is, where do we go from here?
Secondly: What are the forms of whey protein?
Whey can be processed to yield whey protein in 3 forms: whey isolate, whey concentrate OR whey hydrolysate.
The differences between these three proteins is the protein count – Isolate contains the highest percentage of pure protein and if it’s as pure as ours, it can be virtually lactose free (99% yeah that’s right)! A high quality WPI is also pretty much carbohydrate free, fat free and cholesterol free.
A whey protein is considered as a complete protein – meaning it contains all 9 essential amino acids. Essential amino acids cannot be made by the body. As a result, they must come from food. The 9 essential amino acids include: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Within these 9 essential aminos are a group called BCAAs (kinda sounds like a 90’s pop group).
Alright, well what exactly is WPC?
WPC is the least concentrated form of all of the whey protein family. It is roughly about 35-80% protein by weight. Now, the commonly acceptable standard of protein count in a WPC is around 80g per 100g, but our WPC is actually 2.7g higher than the average so you’re getting more bang for your buck!
WPI is the second most concentrated form of protein, it is approximately 80% protein by weight. Our WPI has 85g of protein per 100g.
So.. the big question is.. What’s the difference?
Alright so the first point to make is the difference in protein count. An average WPI has a higher protein count than it’s WPC brother. This is due to the filtration process, leaving the WPI with a higher level of protein per kg.
It is this high filtration that makes a WPI perfect for fast, post-workout recovery, to be taken 30 min before or after you exercise. The WPI breaks down quicker than WPC, resulting in a marginally faster release to your muscles when it is digested by the body.
This is not to discount a WPC, by no means my friends. WPC is perfect for a medium release protein, and because of the filtration process it is more nutritionally beneficial to the body, because many of the vitamins and minerals have not been filtered out in the process.
If you are suffering from lactose intolerance, a WPI is the perfect product for you if you’re not wanting to go straight to plant based; it is so filtered down, it is 99% lactose free. This means that your tummy can rejoice at the same time as your muscles.
So which one do I choose?
Well my friends, we’ve got a solution to everything here at PSA, and if you’re really that stuck, you don’t have to choose!
We’ve developed a wonderful product called 360, which brings the best of both worlds from WPI and WPC, combined into one mega protein!
By combining fast and medium release proteins, our 360 is an ‘all rounder’, delivering a nutritionally rich, easy mixing, high protein supplement.