Steroids are illegal and would not be in any commercially available protein powders sold in the USA (there are online products that claim to contain steroids, but many of these are scams and either do not contain actual steroids or are being made in countries without such bans).
Whey protein certainly is FDA approved, it's a by-product of cheesemaking and has been consumed for as long as people have been making cheese. Whey is the liquid that is pressed out of the cheese, and whey protein powder is simply dehydrated whey (sold plain or with flavorings added).
There are some proteins powders that add stimulants and herbal ingredients with a variety of health claims (mostly muscle-building and/or fat loss), but these aren't "hidden" ingredients they're listed and very often advertised on the label for their alleged properties (which are not downplayed, in fact the reverse is true - the claims are often greatly exagerated). If you see ingredients you don't recognize, you can avoid the product or research the ingredient.
Last edited by kaplods; 02-13-2010 at 12:57 AM.
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