I have read through the fabulous book, Nutrition and physical degeneration, by Price, but have been unable to find specific food sources that would allow many tropical cultures (melanesians, eg.) to acquire high amounts of calcium. He made special reference to activator vitamins that these people would get from the sea, supposedly in higher amounts than pastoralists (seeing as how they got tons more calcium from high dairy intake). I chcked certain vitamins and minerals out, like k2 is supposedly available in scant amounts from most sea foods, and minerals like zinc which are high in sea foods are also found in abundance in land animals. So i'm wondering if anyone has a better understanding to this---how are those tropical cultures getting enough calcium and/or what are the activators Price refers to coming from the sea. Thanks again for any input!
K2 is abundant in seafood but you have to eat the organ meats (like fish liver) to get it.