What is a fundamental characteristic of a healthy diet?

A fundamental characteristic of a healthy diet is being balanced with a variety of food groups. This approach ensures that an individual receives all the essential nutrients required for overall health and well-being. A balanced diet typically includes fruits, vegetables, whole grains, protein sources, and healthy fats, each contributing different vitamins, minerals, and other beneficial compounds. This variety not only helps in maintaining a healthy weight but also supports the body's functions, including immune health, bone strength, and mental wellness.

Focusing exclusively on one food group or nutrient can lead to deficiencies and negatively impact health. For instance, diets high in sugars can lead to obesity and other health issues, while overly restrictive diets that eliminate carbohydrates or emphasize only meat products can miss crucial nutrients present in other food groups, increasing health risks over time. Thus, a well-rounded intake from various sources is vital for sustaining good health.