Don’t be a pennywise and a pound foolish, and always choose quality over quantity. Not only are those good life mottos, but they apply to your protein as well. Whey protein has general qualities, whey protein isolate (WPI) and whey protein concentrate WPC, and knowing the quality you’re buying will dictate the quantity of protein you need to take.

Whey protein isolate, as stated by the USDA, must be at least 90% pure whey protein. Whey protein concentrate has five different commercially available levels: WPC 80, WPC 60, WPC 45, WPC 34, and WPC 25, with the number being the percentage of protein in the powder. Furthermore, companies are not required, in any way, to list which quantity of WPC they are using. So if a label simply reads whey protein concentrate, you don’t know if you are consuming WPC 80, or WPC 34, or a blend of several different qualities of WPC, unless you do some mathematical calculations to figure out what percent of each serving is protein.

Related Articles:
Draw A Line On Supplement Facts Panels
Alternative Conditioning Methods

Breaking down the differences between WPI and WPC is Mark Glazier from NutraBio.

Learning what has worked for others is always invaluable. Seeing it first hand is priceless. Learn from incredible professionals from around the country at the professional development clinics and our annual conference on

Be sure to take advantage of the offer from Use code STTSUPZ when you check out today!

Please remember to order your STT shirts now from Proceeds from the Fight Strong and Sara Strong shirts will be anonymously donated to cancer research and a Lyme Disease Center respectively.

Thank you to all of our sponsors! Rogers Athletic, Iron Grip, Pit Shark, VersaClimber, Recovery Pump, Elite Form, Eleiko, Rumble Roller, Human Kinetics, Fat Gripz, Lock Jaw Collars, Hand Armor Liquid Chalk, and the many others that have all been supportive throughout our journey. Please connect with them on Facebook, Twitter and Instagram.