Tom Brady could get a record fifth Super Bowl win this Sunday, and it doesn’t look like the New England Patriots quarterback is slowing down anytime soon. So what’s his secret? As it turns out, there are some foods he absolutely avoids no matter what, so if you’re looking to find hole sin your own diet, he may have some answers.

Allen Campbell is a professional chef who feeds the Brady family, using a menu that is mostly plant-based. Here are seven things Campbell won’t serve to the Bradys.

White sugar.

White flour

Coffee, or any type of caffeine.

Dairy products.

Peppers, eggplants, mushrooms and tomatoes, because they cause inflammation.

All fruits except for bananas.

Gluten. Eat brown rice, quinoa and millet instead.

This diet is based on research from the T. Colin Campbell Center for Nutrition Studies.