For what its worth, I use olive oil, organic butter, coconut oil and duck
fat for cooking depending on my mood.  You don't want to use any highly
processed oils.  Canola for example, is made in a factory and is probably
full of transfats.   Olive oil and coconut oil, I believe are more or less
just squeezed out of the olive or coconut so are not that different from
eating the olive/nut.  Organic butter is a sin but it is so tasty.  Sally
Fallon and the Weston Price gang are big on it but it is not paleo.  It has
a deep yellow colour and there is no dye in it.  Regular butter is white
unless they dye it.

I use olive oil for salads.  I take Dr. Sears fish oil pills ( 4 per day).
Anything that expensive must be good for you.

Calcium is tricky.  Apparently we don't need as much as we are told.  The
reason most people have bone loss is because they don't exercise and because
they eat too many foods that encourage calcium loss.  e.g. salty foods.  I
don't take calcium supplements but I do take a magnesium pill every day
which is good according to the Eades and Rosedale.  Apparently this will
help prevent bone loss more than calcium because the calcium you do ingest
gets used better.

If this sounds a bit like the unreliable ramblings of a non-expert, that's
because it is.  I feel terrific though and I never get sick.

Ken