Silica is a chemical element with the atomic number of 14 that is known as a tetravalent metalloid. Tetravalent means it makes four bonds to other atoms. Orthosilicic acid is the form predominantly absorbed by humans and is found in numerous tissues including bone, tendons, aorta, liver and kidneys.

Silica is known as the ” beauty mineral ” as it is essential for the growth of skin, hair shafts, nails and other outer coverings of the body as well as connective tissues.

It also makes the eyes bright and assists in hardening the enamel of the teeth. It is beneficial in all healing process and protects body against many diseases such as tuberculosis, irritations in mucous membranes and skin disorders. Silica helps to maintain the correct calcium-magnesium balance which is essential for bone, hair and nail health.

Silica has a powerful influence on the absorption of minerals required by the body for optimal health. It enhances the function of boron, calcium, iron, magnesium and potassium and is essential for normal bone development. Silica helps to maintain the correct calcium-magnesium balance which is essential for bone health.

NOTE: Silica is lethal to the eggs of parasites in the body and so is a good remedy against infestation.

Silica deficiency

Low levels of silica can lead to ageing symptoms of skin such as wrinkles, insomnia, osteoporosis, poor bone development, joint problems, rosacea, soft brittle nails and thinning or loss of hair.

Natural sources of silica in milligrams per 100 grams

  • Pearl barley 600 mg
  • Rice (brown unpolished) 376 mg
  • Kale (cooked) 245 mg
  • Buckwheat 120 mg
  • Bamboo shoots 100 mg
  • Strawberries 99 mg
  • Melon 82 mg
  • Lentils 80 mg
  • Broccoli 78 mg
  • Banana 77 mg
  • Avocado 64 mg
  • Walnuts 60.2 mg
  • Cabbage, cucumber 53 mg
  • Spinach 51.2 mg
  • Hazelnuts 50.4 mg
  • Pine nuts 50.3 mg
  • Potatoes 50 mg
  • Marrow 50 mg
  • Leeks 35 mg
  • Carrots 25 mg
  • Bell peppers, bilberries, cauliflower 22 mg
  • Giner 16 mg
  • Parsley 15 mg
  • Oat bran 14.03 mg
  • Plums 14 mg
  • Watermelon 12 mg
  • Sunflowers seeds 8.5 mg
  • Tomatoes 6 mg
  • Onions 5 mg
  • Basmati rice 0.94 mg
  • Peanuts 0.7
  • Almonds 0.6 mg

NOTE: Silica is found in the juices and green leaves of most vegetables.

A bamboo leaf tea infusion is a good way to obtain sufficient silica in the diet.

Recommended daily requirement of silica

The recommended daily intake of silica for adults is 10 to 40 mg per day  and around 25 mg per day for children.

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