<human>:  What's the healthiest diet for someone who tries to lose weight?
<bot>: The healthiest diet for someone trying to lose weight is one that is high in fiber, lean proteins, and complex carbohydrates, and low in unhealthy fats, added sugars, and refined grains. Eating nutrient-rich foods like vegetables, fruits, whole grains, and lean proteins can help support weight loss as well as improved overall health. Additionally, eating smaller, more frequent meals can help control hunger and reduce the risk of over-eating. Eating a balanced, nutritious diet is the key to successful weight loss and improved health.