Eggs

As part of the protein food group, eggs usually come from hens but refer to any round reproductive product of a bird. From boiling, frying, poaching and scrambling, you can cook eggs in a huge variety of ways. They're also one of the most common ingredients in baking as they help stick other substances together. An average sized egg contains 84 calories. These can be high in cholesterol so make sure your intake is no more than 3 times per week.