Read your bread and cookie labels. Make your own after that. Or stop eating them entirely. Soy is added to most convenience and fast foods now. Why is soy added to bread?? I know this, because one of our family members gets really ill from legumes.

The best bread BTW, is made from strong (high gluten) white flour (Wholemeal tends to trigger allergies - happened to me), yeast, a little milk or honey, or molasses (to start the yeast), and some salt. Nothing else. People knew this before WW2, when white bread was considered the most dogestible. War-time food shortages set off what my mum termed 'poverty bread', which was then marketed as healthy. It isn't. (Same thing counts for brown rice vs. white rice)

Adding soy to bread (I tried a long time ago) makes for disgusting un-risen concoctions, that taste disgusting too, and people will refuse to eat it and beg for the 'regular' recipe.

Teenage boys especially, are vulnerable to soy, not only because they do not care what goes into their mouths, and are learning about spending money for themselves, so are likely to buy sheaky ready-to-eat food.

Read your bread and cookie labels. Make your own after that. Or stop eating them entirely. Soy is added to most convenience and fast foods now.