Which of the following best describes a healthy snack?

A healthy snack is characterized as nutrient-dense and balanced in macronutrients, making this choice the best description. Nutrient-dense foods provide essential vitamins and minerals in relation to their calorie content, helping to support overall health and well-being. A balanced snack includes a mix of macronutrients, such as carbohydrates, proteins, and fats, allowing for sustained energy and satiety. This balance is important for maintaining stable blood sugar levels and providing the body with the necessary nutrients to function optimally.

In contrast, snacks high in salt and sugar do not provide substantial nutritional benefits and can lead to health issues if consumed frequently. Those low in nutrients and high in calories may contribute to weight gain and nutritional deficiencies. Lastly, a snack that only contains carbohydrates lacks the necessary proteins and fats to create a well-rounded nutritional profile, making it less beneficial for health compared to a more balanced option.