Could you develop? Kind of toxicity? As traces in food? Source?

I put vinegar in my salad sauce, I would not dare with glyphosate.

Check the SDS for details, you can easily goggle it, though reading them is harder. You put dilute vinegar on your salad. You don't do that for glyphosate because it doesn't add any flavor, but if you put as much on your salad as you do vinegar it would harmless.