Here is what it says in the SBD Quick and Easy cookbook, "Avacados provide vitamin C and folate. Their fat is mostly monounsaturated, which is helpful in lowering LDL cholesterol levels, but because they are high in calories, you'll want to limit your daily intake to about 0ne-quarter of a whole avacado" (Agatston, p.6, 2005). Cottagebytheresa was correct. It also does say it is good during all phases.
The book also suggests using avacado in place of butter as a spread, so it is definitely on the fats list.
I love avacado every now and again as a treat. Down here they are too pricey to eat often. When I made my homemade baby food Avacado is the first solids that both of my girls ate. They still love fresh avacado.