About once a week, I have this conversation, usually with an otherwise healthy middle-aged woman:
Customer: I've been having a lot of bloating and indigestion lately. I think I need to do A Cleanse!
Me: Well, maybe. But first, let me ask you a few questions: What's your diet like?
Customer: It's pretty healthy. I'm a vegetarian: I have a smoothie in the morning, a salad for lunch, and then dinner is usually something homemade.
Me: Let me guess. There is soy protein isolate powder in the smoothie, edamame in the salad, and dinner involves some sort of fake-meat tofu product?
Customer: ...yes.
Me: Ah. Well, soy is a BEAN. It is hard to digest. I strongly suggest you cut way back on soy, NEVER UNDER ANY CIRCUMSTANCES allow it to be your only source of protein, and if you do consume soy? Make it a fermented product like miso or tempeh. If you want to fortify your smoothie with protein, use a fermented soy protein powder, hemp powder, or perhaps a high-quality whey protein. Remember: Refined food is refined food, whether it's vegetable based or not. And people in countries where soy is used a lot typically consumed it fermented more often than not.
Customer: OMG I never thought of that! Yes! No wonder I'm becoming The Gas Princess!
Me: Smiles, and dies a little more inside.
And then I saw this on the good ol' Beeb:
Tofu may raise risk of dementia, and I get a little more annoyed at the Soy Is God claims. (Mind you, I am WAY more interested in the only obliquely referred to fact that, where the study is done [Indonesia], they sometimes preserve things WITH FORMALDEHYDE, which I strongly suggest is probably more of a problem than a wee bean, but still: I'm not a huge fan of unfermented soy in large amounts.)