What is an example of having a poor diet?

A poor diet lacks fruits and vegetables. A poor diet may consist of fried foods, sweets, and too much meat.

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I don't get the answer

A poor diet refers to a pattern of eating that lacks essential nutrients and is often high in unhealthy foods. One common example of having a poor diet is consuming excessive amounts of processed or fast foods, sugary drinks, and snacks. These foods are typically high in calories, unhealthy fats, added sugars, and sodium, while being low in vitamins, minerals, and fiber. Another example is neglecting to include a variety of fruits, vegetables, whole grains, lean proteins, and healthy fats in your meals. Overall, a poor diet is characterized by an imbalance of nutrients and an overconsumption of unhealthy foods.