Final answer:
High fructose corn syrup is the nutrient that is a carbohydrate. Carbohydrates, which include sugars like fructose and glucose, provide essential energy and support biological functions.
Step-by-step explanation:
The nutrient that is a carbohydrate among the options provided is high fructose corn syrup. Carbohydrates are essential food nutrients that include sugars, starches, and fiber. They provide energy and are involved in various biological functions in the body. Among the simplest kinds of carbohydrates are sugars. High fructose corn syrup is a sweetener that is rich in fructose, a type of simple sugar or monosaccharide. Glucose, which is used by our cells for energy, can be slightly rearranged to form fructose, making it a carbohydrate.
Foods like grains, fruits, and vegetables are natural sources of carbohydrates. While it is true that excessive consumption of carbohydrates can contribute to weight gain, they are necessary for our bodies to function properly. Carbohydrates like high fructose corn syrup should be consumed in moderation as part of a balanced diet for energy and overall health.