Soy protein concentrate?

[ExpatCanadian]

Hey...  a couple recipes I am considering call for soy protein concentrate.  I don't have access on short notice to some from a sausage making supply...  anyone know if I can just pop down to my local health food store and buy a tub of the stuff bodybuilders use?  For example:

http://www.hollandandbarrett.com/pages/product_detail.asp?pid=548&prodid=221&cid=52&sid=0

Or perhaps I should just substitute skim milk powder?

[NePaSmoKer]

Use powder milk.

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[Habanero Smoker]

They are different products. Use the powdered skim milk.

[ExpatCanadian]

Thanks fellas...  knew I could count on y'all for a quick answer....