Attempts to ban the artificial sweetener aspartame - found in chewing gum and diet coke among other foods - have taken a political turn.
MPs have been presented with a petition signed by more than 8,000 people demanding that the food additive commonly known as nutra-sweet be banned from schools and the public be warned about it.
But others argue the scientific evidence against it just doesn't stack up.
Alison White is from the safe foods campaign and she spoke to Sunrise