>They are the figures from the USDA database, and they seem >to me to match up with yours pretty well as a proportion of >SFA:MUFA:PUFA. not at all. your figure states SFA to be about 40% of PUFA. my figures say that even in fish *oils* PUFA does not exceed SFA. the idea that SFA and PUFA should be of equal weighting in diet seems impossible if this configuration is found rarely in nature. andrew