Orthosilicic acid is the form predominantly absorbed
by humans and is found in numerous tissues including
bone, tendons, aorta, liver and kidney. Persuasive data
suggest that silica is essential for health although no
RDI has been established. However, a deficiency of silica
induces deformities in skull and peripheral bones,
causes poorly formed joints, reduced contents of cartilage,
collagen, and disruption of mineral balance in the
femur and vertebrae.
