Personal opinion: I think pathologically high bad cholesterol has more to do with metabolism than diet, although diet sure is a factor.

I don't see a problem with soy sauce, although I prefer vinegar & salt. You have to fry up the right potatoes though. Put a sack in the fridge for a few months. I think the fact that some of the starch converts to sugar not only makes the taters taste different but makes the outsides crunchier.