I was listening to a Basic Brewing Podcast on Mead and the expert he had on was talking about Nitrogen needs of yeast. He stated that DAP provides the Nitrogen and he said something to the effect of "The yeast packet will list whether it has a high nutrient or low nutrient need" Did he actually mean to say high or low Nitrogen need? I would assume he did as he was talking about Nitrogen at that point but he also said that DAP is the nutrient, but to confuse me more he just spoke about Fermaid-K and called that the nutrient.