Was Mystified

I was mystified when some days I have redoubled energy, a renewed sense of purpose, and a profound rush of confidence rather than my usual daily blahs. Careful investigation with a daily diary traced it to pop tarts. Doesn't correlation prove causation? Or does causation prove correlation? (I have never been able to get that straight). My redoubled energy, renewed sense of purpose, and confidence rush is tied to having pop tarts for breakfast. Pop tarts for breakfast from now on? What would a dietician think?