Is Aspartame dangerous to human health?

Aspartame has not been linked to any health problems in humans, reports the American Cancer Society. The only exception is for people with a rare genetic disease called phenylketonuria who can't metabolize one of the amino acids that composes aspartame, phenylalanine.

Studies performed on lab animals who were given daily doses of aspartame much higher than doses that humans consume did not show a link between the sweetener and any health problems, states the American Cancer Society. Studies performed on humans showed no connection between aspartame and cancer. When the FDA reviewed all the data on aspartame, it concluded that the sweetener was safe for human consumption.