Vitamins & minerals

Silicon (Silica)

Important for tissue strength, silicon, usually referred to as silica, is the most commonly found element in the earth's soil and in foods. It gives strength and firmness to the body tissues — the bones, cartilage, connective tissues, arteries, and skin. This mineral is well worth a try if you're trying to help heal fractures.

Key uses of silicon:

  • Supports and strengthens your skin, hair, and nails, as well as the joints and connective tissues.
  • Helps your arteries maintain flexibility and may, therefore, be helpful in the prevention of cardiovascular disease.

Where you can find itWhere you can find it: Silica occurs in plant fibers, so some is available from whole grains, particularly the hulls of wheat, oats, and rice. You can also find silica in vegetables (such as beets, lettuce, cucumbers, and onions) and in herbs (such as horsetail and oatstraw).

How much to takeHow much to take: No official requirement for silicon exists. You may take from 50-100 mg or 500-1,000 mg daily. Horsetail herb extract is a good source and is available in capsules or tablets.


Too little or too muchToo little or too much: Toxicity and deficiency are both uncommon. Scientists are still studying silica's effects on human health.