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Rubidium content of foods
Tuesday, May 24, 2016 4:40 pm Email this article
Rubidium is an ultra-trace mineral used by humans which has been shown to have an antidepressant effect.
Here is the rubidium content of a couple of foods from a 1995 paper which analyzed 137 foods for their rubidium content.
Coffee contains 40 mg of rubidium per kilogram (2.2 pounds) dry material.
Black tea contains 100 mg of rubidium per kilogram (2.2 pounds) dry material.
Eight-five percent (85%) of the rubidium pass into these beverages.
Asparagus: 60 mg rubidium per kilogram
Asparagus contains more than 60 mg of rubidium per kilogram (2.2 pounds) dry material.
Fruit and Vegetables: 5-60 mg rubidium per kilogram
Fruits and vegetables accumulate between 5 to more than 60 mg per kilogram (2.2 pounds) dry weight, with asparagus containing the most.
Boiling Drastically Reduces Rubidium Conent
Boiling drastically reduces the rubidium content of vegetables.
This suggests eating raw vegetables.
Animal Foodstuffs are poor in rubidium
Animal foodstuffs are relatively poor in rubidium, although one paper refers to suggest that salami may have a relatively high rubidium content.
Cereals, Pasta, Bread: 1 mg rubidium per kilogram
Starch-and sugar-rich cereals, pasta, bread and confectionary only contain one (1) mg mg of rubidium per kilogram (2.2 pounds) dry material.
Abundant in the Earth’s Crust: 310 mg rubidium per kilogram
Rubidium is abundant in the earth’s crust which contains 310 mg of rubidium per kilogram (2.2 pounds).
Anke M, and Angelow L. Rubidium in the food chain. Journal of Analytical Chemistry, 1995; 352(1): 236-239.
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