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In the simplest possible explanation the only difference between the two is the level of lactose and fats. This means that WPC is not suitable for people that are lactose intolerant. Before we go further into the difference it's worth noting the composition of milk protein.
Milk protein is comprised of casein and whey. Casein is unsuitable for many due to digestion issues, whereas whey protein , with heavily reduced fats and lactose, is generally more tolerated. Whey protein is the richest natural source of the essential building blocks for muscles, branched-chain amino acids (BCAAs). It is a complete protein in that it contains all 20 amino acids, unlike many other proteins such as soy.
Casein protein is a poorly soluble, hydrophobic milk protein. It contains high numbers of proline amino acids and is found in milk as a suspension of particles called casein micelles. It is the primary component in most cheeses. We choose not to retail casein as we find it an inferior protein source compared to whey.
Both products are manufactured from freese cheese whey via a chemical and heat free micro filtration process. There is one key difference; WPI has one extra level of filtration that removes most of the carbohydrates (lactose) and fats.
Our WPI is made in New Zealand from the milk of grass-fed dairy cows.
Our WPC is made in Australia from the milk of grass-fed dairy cows.
Whey Protein Isolate goes through one more filtration compared to Whey Protein Concentrate. This extra step removes almost all of the remaining lactose and fats. Because of this extra filtration most people can tolerant the tiny amount of lactose in WPI. We strongly recommend that if you are lactose intolerant you choose WPI over WPC.
Both products taste very similar. WPI has a cleaner taste than WPC, this is purely because it has less fats and carbohydrates. After the proteins are blended with our organic flavours you don't taste much of the whey flavour.
We only blend our proteins with the best organic flavours. Using real cacao, real vanilla bean pods, and Japanese matcha we believe we have formulated the best tasting proteins on the market.
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