Rubidium
Reason to eat your potatoes with skin.
"There is a varied spectrum of foods that carry it, but whatever there is may not be in foods that many people eat. It comes in Brazil nuts, pecans, sesame and sunflower seeds, potato skins, egg plant, mushrooms, cucumber, avocado, and meat bones. Bone soup is a very rich and delicious source.
The animals, in order to have rubidium in their bones, would have to have been fed organic food, and to have foraged in clean pastures.The nuts, seeds, and vegetables must all be organic, since genetically modified foods are very depleted in minerals. The way the herbicide glyphosate (in Roundup,) kills weeds is to prevent them from absorbing minerals. Plants that are genetically modified so that they can withstand the herbicide, by definition are extremely low in minerals, and cannot supply the basic nutritional constituents required to maintain health. Deficiency diseases are becoming rampant, medically unrecognized and often misdiagnosed, a tragic legacy for the millions of people who believe that this toxic food is safe.
http://www.balancingcenter.com/articles/rubidium.html