I eat soy nuts all the time (
Jenn)...just a couple whenever I feel a craving coming on, or if I come home and feel hungry but want to wait an hour for dinner, etc. Usually somewhere around 3-6 of them. It's a great snack...has protein to keep you full for a while, but much less fat (and healthier) than peanuts. Dr. A says in the GFGCG that soy can help lower LDL cholesterol. He also says that the green edamame (raw soy beans/nuts) are good. I count the green ones as a veggie, and the roasted ones as a meat sub in small amounts.
Soy protein isolate sounds like an ingredients in frankenfoods and low carb snack. Remember that we are trying to eat less processed food and get away from the type of snacks that helped us get where we are now, rather than substituting a different version of the same foods, okay?