Which of the following will not enhance nutritional value of food?

Vitamins and minerals are essential nutrients because they perform hundred of roles in the body. They help shore up bones, heal wounds, and bolster immune system. They also convert food into energy, and repair cellular damage.

Artificial sweeteners are non-caloric substitutes for sugar. They are often intensly more sweet than sugar but do not enhance nutritional value of food.

Amino acids are the monomers of proteins. Proteins require for the growth and maintenance of the body. Therefore, amino acids will also enhance the nutritional value of food.