Original: Three years later , S. Boyd Eaton , Marjorie Shostak and Melvin Konner published a book about this nutritional approach , which was based on achieving the same proportions of nutrients ( fat , protein , and carbohydrates , as well as vitamins and minerals ) as were present in the diets of late Paleolithic people , not on excluding foods that were not available before the development of agriculture .
Simplified: Three years later , S. Boyd Eaton , Marjorie Shostak and Melvin Konner published a book about this way of eating . The book was about having the same proportions fat , protein , and carbohydrates , vitamins and minerals ) as people near the end of the Paleolithic era ate .