"Jonathan Acey Albert" > wrote:

> Can too much nitrogen be a problem? How so?

Most yeast nutrients and "energizers" contain a large amount of diammonium
phosphate, which provides nitrogen to the yeast cells. I believe, like
plants, they use it for fuel. It's my understanding that too much nitrogen
can be counterproductive, and kill the yeast. Sort of like "too much"
alcohol (a mythical quantity I've never encountered) being dangerous to your
health.