Health and Fitness

Protein Powder: Insight Into Whey Protein Isolate (WPI)

Protein powder is such a common supplement that it is estimated that almost 1 out of every 2 gym patrons use it. While there a many types of protein powders, the one that we are going to provide an insight into is Whey Protein Isolate (WPI).

What is Whey Protein Isolate?

Whey Protein Isolate or what it is commonly referred to as WPI, is a type of whey that is both affordable and effective for building muscle and losing weight. Of the 4 different types of protein that comes from whey, WPI is the most affordable and it is effectively quick to digest and absorb. While other types of whey like Hydrolyzed Whey (HW) are quicker to absorb they also cost more and unlike Whey Protein Concentrate (WPC) and Casein, WPI absorbs within 30 minutes of consumption instead of the 1 to 4 / 3 to 7 hours’ time-frame that comes with WPC and Casein (respectively).

Protein Isolate

Why Is Absorption Rate Important?

Whey Protein Isolate has a quick absorption rate which works immediately after or before a workout. As it only takes 30 minutes for the protein within WPI to be digested into amino acids and absorbed by the body. WPI works well as a pre-workout nutrition to boost and safe guard your muscles against muscle cannibalism. As well, it works as a post-workout supplement to supply your muscles with vital nutrients, providing them with all that they need to recovery and further develop new strength and muscle. In comparison to WPC and Casein, the protein / amino acids would be digested hours after your workout, forcing the body to catabolize muscle for amino acids to be used for other bodily functions.

What Is The Protein Content in Whey Protein Isolate?

WPI has one of the highest amounts of protein per gram of powder. While there are a lot of estimations out there, the one that I rely on is the ratio of 80 to 90% of protein per gram of WPI. This protein content is quite high and is certainly enough to help in any weight loss or bodybuilding goal you have in mind. Most WPI supplements have a protein serving size of 22 grams, anything around the 20 mark has been shown in studies to promote protein synthesis which is the process of recovering and developing muscle.

Where Can I Find Whey Protein Isolate?

You can find WPI both online and in your local health shop. Start by searching the WPI supplements here: https://www.supplementexpress.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/SupplementExpress/Categories/%22Protein%20Powder%22/Whey_Protein_Isolate_WPI. Furthermore you should research the top rated lists of WPI. Alternatively you can find more firsthand experience with WPI in bodybuilding / supplement forums.