Which of the following is a key component of a healthy diet?

Fruits and vegetables are considered a key component of a healthy diet because they are rich in essential nutrients such as vitamins, minerals, and fiber, while being low in calories. Including a variety of fruits and vegetables in the diet helps to support overall health, boosts the immune system, and reduces the risk of chronic diseases such as heart disease, diabetes, and certain cancers. They also contribute to healthy digestion and can aid in weight management due to their high fiber content.

In contrast, processed foods often contain high levels of unhealthy fats, sugars, and sodium, which can contribute to health issues over time. Sugar-rich snacks tend to provide empty calories without substantial nutritional benefits, leading to energy spikes and crashes while increasing the risk of obesity and other health problems. High-fat meats can be high in saturated fat, which, when consumed in excess, is linked to elevated cholesterol levels and cardiovascular issues. Therefore, fruits and vegetables stand out as the healthiest choice among the options provided.