Sorry, you'll have to read the paper. I don't really know where the calcium comes from in Eaton, Eaton and Konner's calculations. I personally think that osteoporosis is best explained by excessive salt, caffeine, inadequate sunlight (vitamin D) and exercise. I think the Western RDA is pushed by the dairy industry. It is true that you need that much calcium if you take salt & caffeine, have no sunlight, don't exercise. Rather than esting more calcium, the health autthorities should push for salt warnings on foods. The paleodiet site has a good review at http://www.panix.com/~paleodiet/losspts.txt Ben Balzer ----- Original Message ----- From: Mary <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, August 27, 1999 12:48 AM Subject: Re: [P-F] Refuting paleo > >Incidentally, The Calcium aspect is covered 2 ways- firstly ref 1A > >calculates a high Calcium intake of 1900mg/day. > > from what foods, precisely?