Can you just eat fat

Yes, you can technically eat only fat, but it's not advisable for long-term health. A diet consisting solely of fat may lead to nutrient deficiencies, as it lacks essential vitamins, minerals, and other macronutrients like carbohydrates and proteins that the body needs for proper functioning. Additionally, a high-fat diet could negatively impact heart health and other metabolic processes if not balanced with other nutrients. It's important to maintain a varied diet for overall well-being.