About Shilajit
Origins of Shilajit
Considering its unique composition as a phytocomplex, very rich in fulvic acid, researchers hypothesize that Shilajit is produced by the decomposition of plant material from species such as Euphorbia royleana and Trifolium repens. This decomposition seems to occur through centuries, and on this basis, shilajit is considered a millenary product of nature. However, further studies have identified that several other plant organisms may generate shilajit, such as molds as Barbula, Fissidens, Minium, and Thuidium and other species like Asterella,Dumortiera, Marchantia,Pellia,Plagiochasma, and Stephenrencella-Anthoceros
Molecular Composition of Shilajit
Shilajit is composed mainly of humic substances, including fulvic acid, that account for around 60% to 80% of the total nutraceutical compound plus some oligoelements including selenium of antiaging properties. The humic substances are the results of degradation of organic matter, mainly vegetal substances, which is the result of the action of many microorganisms. Components are divided operationally in humins, humic acid, and fulvic acids according to their solubility in water at different pH levels. Humins are not soluble in water under any pH condition. Humic acid is soluble in water under alkaline conditions and has a molecular weight of 5–10 kDa. Fulvic acid is soluble in water under different pH conditions, and because of its low molecular weight (around 2 kDa), it is well absorbed in the intestinal tract and eliminated within hours from the body . It is likely that the curative properties attributable to shilajit are provided by the significant levels of fulvic acids that shilajit contains, considering that fulvic acid is known by its strong antioxidant actions and likely has systemic effects as complement activator. Recent studies on the composition of Andean Shilajit in Chile have evidenced an ORAC index between 50 and 500 Trolox units/g of material, which is substantially higher than Noni and blueberries (Quinteros et al., unpublished data). In this context, shilajit seems to be a powerful antioxidant phytocomplex.
Other molecules present in shilajit preparations are eldagic acid, some fatty acids, resins, latex, gums, albumins, triterpenes, sterols, aromatic carboxylic acids, 3,4-benzocoumarins, amino acids, polyphenols, and phenolic lipids . Certainly its molecular composition varies from region to region. Newer investigations based on high-performance size exclusion chromatography (HP-SEC) show that shilajit contains specific molecular species of polysaccharides and lignins . As humic components, humins, humic acids, and fulvic acids are found in all shilajit preparations, being the last one, fulvic acids, the biologically active compound, along with dibenzo-α-pyrones, which acts as carrier of other substances.
Traditional Uses of Shilajit
Shilajit is an important, known component of the ayurvedic medicine given its characteristics as a rasayana. In this context, health benefits such as an increase in longevity, rejuvenating, and arresting aging roles have been attributed to it. Traditionally, shilajit is consumed by people from Nepal and the North of India, and children usually take it with milk in their breakfast. The Sherpas claim to have shilajit as part of their diet; they constitute a population of strong men with very high levels of a healthy longevity. Our laboratory has found evidence on the high activity of the Andean form of shilajit in improving cognitive disorders and as a stimulant of cognitive activity in humans .
