Examples of non-essential nutrients include dietary fiber, alanine, arginine, glutamic acid, glutamine, glycine, histidine, proline and serine. All but dietary fiber are amino acids that are non-essential nutrients for the human body.
Non-essential nutrients do not need to be eaten in order to be obtained. The human body can synthesize all of the non-essential nutrients. However, if they are obtained from food, then the body does not synthesize them. These nutrients are required to maintain optimum health. If they are deficient, then disease may occur. Most non-essential nutrients are amino acids. Other non-essential nutrients include phytochemicals that have antioxidant properties to repair cell health.