Quirks & Quarks

Your pancake breakfast could be making you cranky

Scientists found that breakfasts high in carbohydrates affects people's decision making.
Is your breakfast making you cranky? Cut back on carbs. (IrishFireside/Wikimedia Commons)

What did you have for breakfast this morning?  Are you a grab-a-muffin-and-go kind of person? Or maybe you prefer a heartier, protein heavy breakfast? You know … eggs and bacon with a slice of whole-grain toast? 

Well, it turns out, that decision could matter for more than your waistline.  According to the senior author of a new study, Dr. So Young Park from the University of Lü​beck says what you eat could influence decisions you make.

She and her colleagues found that when people ate carbohydrate-heavy breakfast, they were much more likely to punish a person for making an unfair offer in a pscyhological game known as the Ultimatum Game. The reason for this? If you eat a breakfast that's higher in protein, you make more tyrosine, which is a precurser to dopamine — a neurotransmitter in the brain that affects decisions we make.

How your breakfast could be influencing the decisions you make 1:00