Variety may indeed be the spice of life, but it is just a word until new and unique flavors add something to the mix and provide some of those variations. However, flavorings have met with a degree of controversy of late, as have manufacturer efforts to add diverse new flavors to traditional lines.

Chronic exposure to an artificial butter flavoring ingredient, known as diacetyl, may worsen the harmful effects of a protein in the brain linked to Alzheimer's disease.