Shilajit is a complex, black, sticky phytocomplex that forms over centuries as plants die and decompose within the crevices of high-mountain rocks. Primarily harvested in the Himalayas, it has been a cornerstone of Ayurvedic medicine for thousands of years, where it is classified as a rasayana—a substance believed to rejuvenate body tissues, improve plasma quality, and prolong life. While it is now sold globally in forms ranging from powders to gummies, medical experts urge caution because robust scientific data on its safety and efficacy is still lacking.
The Science of Fulvic Acid
Most health claims surrounding shilajit are driven by its high concentration of fulvic acid, a chemical created by microorganisms breaking down organic matter. In laboratory settings, fulvic acid shows promise as an antioxidant that protects cells from oxidative stress. However, researchers like Dr. Robert Saper warn that in high doses, it can actually have oxidative properties, potentially increasing cell damage rather than preventing it.
Potential Health Benefits Under Study
While clinical trials are often small or methodologically flawed, early research suggests several possible benefits:
- Cognitive Health: A 2023 study indicated shilajit might help slow Alzheimer’s disease by breaking down existing brain plaques and preventing new ones from forming.
- Bone and Blood Health: Small studies suggest it may speed up bone healing, slow bone loss from osteoporosis, and improve iron absorption to prevent anemia.
- Inflammation and Immunity: It is used to treat conditions from eczema to diabetes, with some evidence suggesting it can act as an immunomodulator, either enhancing or suppressing the immune system as needed.
- Stress Relief: Because it is rich in magnesium, it may help calm the nervous system and reduce levels of the stress hormone cortisol.
Significant Safety Risks
In its raw, natural form, shilajit is often contaminated with heavy metals such as lead, arsenic, mercury, and cadmium, as well as harmful fungi and bacteria. Because the FDA does not regulate supplements, consumers cannot always be certain of a product’s purity; in fact, some processed supplements have been found to contain higher levels of toxic metals than the raw material.
Source Link: https://health.clevelandclinic.org/shilajit-benefits
