What food group is NOT considered a primary source of nutrition according to dietary guidelines?

Sweets are not considered a primary source of nutrition according to dietary guidelines. Primary food groups, such as dairy, protein, and vegetables, provide essential nutrients that support overall health, including vitamins, minerals, fiber, and protein. These groups are fundamental for maintaining bodily functions, energy levels, and growth.

Sweets, on the other hand, typically consist of added sugars and fats, which can contribute to caloric intake but offer little nutritional value. They do not contain the essential nutrients found in the primary food groups and are often recommended to be consumed in moderation. Thus, they do not fit the criteria of being a primary source of nutrition, making them the correct choice in this context.