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I think it has nothing to do with the whey, bacause i take whey for several years and never had this reaction. All the whey proteins that i have took had the aminoacide l-arginine, that stimulate the...

No, i dont have any abdomen pain, only heart palpitations and some fatigue.

I will take another protein to see what happens.

I never felt anything like this with other proteins. So, you think the heart palpitations are caused by nitric oxide?

Few weeks ago i started taking protein powder PVL Mutant Whey and started experiencing some heart palpitations and fatigue. I decided to stop taking the protein for about two weeks and the heart...