Low fat ricotta is very difficult to get so I make my own it is very simple to do and much cheaper - get some 2% milk, usually use 4 pints -bring just to below boiling so that little bubbles are around all the edge but not a rolling boil - add 2-4 tablespoons of either white vinegar or lemon juice. Wait till curds form (this will happen quite quickly) Strain through cheescloth - when finished draining - squeeze and wrap cheesecloth fairly tightly around curds put in fridge with a plate on top and tin to weigh it down - after about an hour it will be ready to use - you may want to add salt. very quick and cheap to make as there are not preservatives will only keep a day or two in fridge