What food groups are represented in a taco?

A taco typically includes several food groups: proteins from meat or beans, vegetables from toppings like lettuce, tomatoes, and onions, grains from the tortilla, and dairy from cheese or sour cream. Depending on the ingredients, it can also provide a source of healthy fats if avocado or guacamole is included. Overall, tacos can be a balanced meal by incorporating various food groups.