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Peanut Nutrition. 1  Peanuts and peanut butter are full of nutrition and contain protein, mostly good fats, fiber and more than 30 essential vitamins and nutrients, and fit into a balanced diet. 2  For more resources, jump to the bottom of the page.
Peanut butter is made by mashing up peanuts, and peanuts are predominantly made of protein, fats, carbohydrates, and water. Cars are made by, well, you get the point...   All that said, if you are asking whether peanut butter contains lots of protein, then that's another matter altogether.