From The Color of the Day: Solving Bowel Movement Mysteries

Light yellow to bright green, loose/runny, curdy, lumpy, seedy, creamy, mustard-like
These are normal breastfed stools. The consistency, frequency and color vary from day to day. My wife described the smell as "curried yogurt". Opinions on this odor description differ widely.

-- this is what DS's are like. :-}