Diatomaceous earth consists of the fossilised remains of diatoms, microscopic unicellular microalgae, whose shells contain particularly high amounts of silica. They live in freshwater and marine environments and have the ability to absorb silicic acid from seawater and convert it into silica for their own shells. For this reason, diatomite deposits are often found in areas close to volcanoes. There, the microalgae have access to easily soluble silicic acid from the volcanic rock.
When shedded, the silica-rich shells of diatoms enrich the soil. If their habitat changes, due to the drying out of a lake or other environmental influences, they can die off en masse. The diatomaceous earth that subsequently develops can be many metres deep.
This mineral's name comes from the Latin word "silex", meaning hard stone. Silicon, at 28%, is the second most abundant element in the earth's crust. For every kilogram of body weight in the human body, approximately 20mg is silicon, although this value seems to decrease with age. It is found in connective tissue, blood vessels, tendons and ligaments as well as bones, cartilage, hair and nails. Whole grains (brown millet and oats, in particular), as well as horsetail, bamboo shoots and diatoms, are good sources of silicon.
Silica is present in plants and other organisms in the form of orthosilicic acid, a compound which is not fully bioavailable in the presence of certain dietary fibres. Our diatomaceous earth capsules, standardised to 77% silica, contain 350mg of silica and provide 163.5mg of elemental silicon.
General Silicon Requirements
Silicon is one of the potentially essential trace elements, so it does not yet have an official recommended intake (NRV). The daily amount excreted in the urine is between 10 and 40 mg.