List of companies that may be amino spking their protein powders.

[gmantheman]

Here is a list of companies that may be guilty of amino spiking. Even the "reputable" companies that charge a premium for the products are apparently guilty.
http://www.newsinferno.com/nitrogen-...ent-customers/

[Ashop]

We only use SynthePURE,,,it's the best protein out there from a trusted, no non sense, company.

[Times Roman]

and an excerpt from OP's link:

Brands that may be guilty of protein spiking include: Body Fortress, ProSupps, MusclePharm Arnold series, 4 Dimension Nutrition, Designer Whey, Mutant Nutrition, Top Secret Nutrition, Gaspari Nutrition, Giant Sports Nutrition, Infinite Labs, and Beast Sports Nutrition.

Consumers looking to buy protein supplements should read the label to avoid a product that has been spiked; ingredients to look out for are arginine, glycine, creatine and taurine. According to General Nutrition Centers (GNC), these ingredients should not be counted in a protein test, even though some of them may have health benefits.

[gmantheman]

Supposedly some of the companies did clear it up. Top Secret admits to adding glutamine, taurine and leucine but they don't count it towards the protein content. I am guessing others will defend themselves.