Soy protein rush??

[nemesys571]

Looking for ways to boost a little my protein intake I tried soy protein isolate (Vitamin Shoppe 100% Soy Protein, natural, no flavoring or sweeteners, 26g of protein per serving). I use half a serving, and after drinking it I feel a rush like I just had an extra dark expresso; Is this burst of energy normal of soy protein?

[Gaelen]

Welcome in, nemesys!
I have to say, I've never gotten a rush from a protein powder, soy or whey, but I suppose mileage might vary. What were you mixing it it, nemesys?

[deirdra]

Did you feel energetic or like your heart was racing? If your pulse increased by more than 12 beats per minute after eating it, you may be allergic to or intolerant of it.