Why are you not supposed to eat dairy before you sing?

Question:

Why are you not supposed to eat dairy before you sing?

The OnDemand Voice Tutorial said that you're supposed to avoid eating dairy before you sing, but it didn't say why. Does it cause bloating...? Cramps...? I assume that eating dairy interferes with the quality of the sound somehow...?

Best Answer - Chosen by Asker: It creates mucus and phlegm
bad for respiration, thus bad for singing