<human>:  What is the healthiest diet plan?
<bot>: The healthiest diet plan is one that stresses eating whole, unprocessed foods such as fruits, vegetables, whole grains, lean proteins, and healthy fats. It is also important to limit added sugar and refined carbohydrates, as well as unhealthy fats. Additionally, it is important to get enough fiber from plant sources, as well as enough lean proteins, and to avoid processed foods, unhealthy fats, and added sugars.