Authentic bread contains only water, flour, salt, and optionally olive oil, and sourdough fermentation can break down anti-nutrients in wheat.

“If your bread has more than four ingredients, it's not bread. So, here's what should be in bread. Water, flour, salt, maybe an oil, like an olive oil, not a seed oil. That's all that needs to be in bread. Make a sourdough bread. You take water, you mix your flour with it, preferably an organic flour. You let it ferment. That breaks down some of the anti-nutrients in the wheat. You add some salt. Maybe you add a little bit of olive oil. That's how you make bread.”