If you have to use Google to search for foods that you ‘are allowed’ to eat, then, you might be stuck inside of a diet box.
Of course, if you’re stuck inside of a diet box for a short-term, or specific medical reason, such as: an elemental diet, or, a fungus removal protocol, that makes sense.
Even in those situations, the long-term goal is generally re-introduction of as wide a variety of foods as possible, under proper guidance.
Outside of those situations, it is far less likely that you need to be in a box.
If a food doesn’t make you feel good, don’t eat it. I don’t eat wheat, quinoa, or too much grain in general for these reasons.
But if it does, why wouldn’t you eat it?