What to Avoid: Junk Food This one is purely psychological. Even if you make healthier versions of your favorite comfort food using Whole30-approved ingredients, the diet aims to challenge your cravings for these foods. Here are some popular foods you'll have to cut out for the month: Biscuits Candy Cereal Cookies Cupcakes (or sweets of any kind, really) French fries Pancakes Pizza (sorry) Potato chips Waffles Image Source: Getty / Carlo A