Bread, carrots, milk and sugar alcohols are forbidden by Dr. Bernstein's diet. Grains and grain products, sweeteners, sweet and starchy vegetables, fruits and fruit juices, and dairy products are all forbidden categories.
The diet also forbids nuts, except in small amounts, most processed foods and most condiments. Most meats and other protein-rich foods are allowed unless they have added carbs. Cheeses and unsweetened full-fat yogurt are allowed. The diet recommends unsweetened soy milk as a replacement for dairy milk, and soy flour replaces grains. Artificially sweetened foods are also allowed if they don't contain dextrose or maltodextrin, which are sugars.