>  Well, this is only meat, not total carcass fat, but those are
> the values. The mean P:S ratio for the group is .9

 i think there's fair point in this, although adding back depot fat will
boost the proportion of SFA [fat around kidneys and heart is highly
saturated, as that is what those organs burn for energy].

 the fact remains, we can't know for sure the exact proportions of fats in
various paleo diets. I'm happy with an educated guess: 40-50% each for SFA
and MUFA, and 5-15%  for PUFA.
this approximates the ratios in the human body.

 one great mystery is the amount of VLCPUFA Om-3s.  the ideal could be 3
grams or 20, no one seems to know.  But sea mammals were highly prized in
any maritime culture.

 this leads to another point: liver is the prized organ, more so than muscle
meat. some animals eat the liver only and ignore the muscle meat. the liver
of sea creatures has more oil, Om-3s, and vitamin D than land animals. in
fact marine livers is the only decent food source of it. Vitamin D is
heavily involved in production of hormones, so anyone wanting to lose weight
should look at this issue closely.

 in northern climates [where most of our ancestors have come from] the sun
provides little by way of vitamin D. the RDA for vitamin D is 400IU, my
study suggests 10,000 IU is better. vitamin A RDA is 5,000IU, i think 40,000
is better, when you take into account the contents of the livers of various
creatures up there.


 andrew