Silicon and Health: Role in the Body, Medical-Grade Uses, and Food Sources
Published by Zhen An International Co., Limited - Knowledge Center | Updated: August 10, 2026 | Original article published: October 29, 2024
A common search question is "What diseases does silicon cure?" The short, honest answer: silicon does not cure any disease. The word "silicon" is used for three very different things - an industrial element, a trace nutrient in food and water, and a family of medical polymers - and mixing them up has produced a great deal of misleading health content online. This article separates fact from myth and explains what science actually says about silicon in the body, medical-grade silicone, and the silicon we consume every day.
Medical disclaimer: This article is provided for general information only and does not constitute medical advice. It is not intended to diagnose, treat, cure, or prevent any disease. If you have a health concern, please consult a qualified physician.
Key Takeaways
No cures: Silicon does not treat or cure any disease. Claims that it does are not supported by scientific or regulatory evidence.
Trace element: Silicon (Si) is found mainly in bone and connective tissue; its bioavailable form in the body is orthosilicic acid.
Silicon vs. silicone: Silicone is a synthetic polymer, not elemental silicon. Medical-grade silicone is used in implants, catheters and other devices - a materials application, not a drug effect.
Dietary sources: Drinking water and unrefined cereals are the main everyday sources of silicon; typical Western-style intakes are estimated at roughly 20–50 mg per day in published intake studies.
Industrial silicon is not food: Metallurgical silicon metal and ferrosilicon are industrial raw materials and must never be consumed.
Why "Silicon Cures Diseases" Is the Wrong Question
The original Russian version of this page asked "Какие болезни лечит кремний?" - "What diseases does silicon cure?" - and went on to claim that silicon deficiency could cause dermatitis, encephalitis, cataracts, tuberculosis, hepatitis, atherosclerosis and gastritis. Those claims have no published scientific basis, and repeating them here would be irresponsible. No regulatory or scientific authority recognizes silicon as a treatment for any disease.
To understand the topic properly, it helps to separate three meanings of "silicon":
Elemental silicon (Si) - a metalloid smelted from quartz into silicon metal and ferrosilicon, used mainly by the steel, foundry and aluminum industries.
Dietary silicon - natural compounds such as silicate and silicic acid found in water, soil and plant foods.
Silicone - a family of synthetic polymers (polydimethylsiloxane and related materials) used in sealants, kitchenware and medical devices.
None of these is a medicine. Health content that promises otherwise misleads readers and should be treated with caution.
Silicon in the Human Body: A Trace Element in Bone and Connective Tissue
Silicon is present in human tissues in trace amounts. Research published over several decades has consistently found it mainly in bone, connective tissue (skin, tendons, blood vessel walls), hair and nails. In the body, dietary silicon is absorbed mostly as orthosilicic acid - the soluble form found naturally in water and plant foods.
Studies suggest that silicon participates in the early stages of bone matrix formation and in collagen synthesis, collagen being the main structural protein of connective tissue. For this reason, nutrition science generally regards silicon as a beneficial trace element for bone and connective tissue health. At the same time, no official dietary requirement for silicon has been established by bodies such as the European Food Safety Authority (EFSA), and there is no evidence that silicon prevents, cures or treats any named disease. Statements linking silicon deficiency to specific illnesses, like those in the original article, do not reflect current scientific knowledge.
| Aspect | What is known | Evidence level |
|---|---|---|
| Occurrence | Trace silicon is found in bone, connective tissue, hair and nails | Repeatedly reported in published studies |
| Bioavailable form | Orthosilicic acid (soluble silicon) absorbed from water and foods | Generally accepted in nutrition science |
| Proposed role | Suggested involvement in collagen synthesis and early bone matrix formation | "Studies suggest" - active research area, not a proven treatment |
| Status | Beneficial trace element; no official dietary requirement established; no curative role recognized | EFSA and nutrition bodies have reviewed silicon compounds; no disease claims approved |
Note: "General recognition" statements above reflect published research and nutrition-science consensus, not clinical claims.
Medical-Grade Silicone: A Material, Not a Medicine
Medical-grade silicone is a high-purity, biocompatible polymer used to manufacture medical devices. This is a materials application, not a drug effect: silicone devices support medical treatment, but the material itself is not a medicine and does not cure disease.
Because of its chemical stability, flexibility and low tissue reactivity, silicone is used in implantable and body-contact devices. Examples include breast implants, catheters and drainage tubes, prosthetic components, pacemaker lead insulation, wound dressings and components of some contact lenses. Medical devices are tightly regulated: biocompatibility is assessed against the ISO 10993 standards family, manufacturers generally operate under ISO 13485 quality management requirements, devices are cleared by the U.S. Food and Drug Administration (FDA) before marketing, and in the European Union they must carry the CE mark. In short, medical-grade silicone is a proven engineering material - and it belongs in the operating room, not in a supplement bottle.
| Application area | Typical uses | Relevant material property |
|---|---|---|
| Implants | Breast implants, joint and facial prosthetics | Biocompatibility, low tissue reactivity |
| Tubing and drainage | Catheters, drains, tubing sets | Flexibility, chemical stability |
| Electrical insulation | Pacemaker lead insulation, device seals | Dielectric stability, durability |
| Wound care | Silicone wound dressings, scar management sheets | Gentle adhesion, moisture control |
| Ophthalmics | Components of some contact lenses | Optical clarity, oxygen permeability |
Note: Regulated under ISO 10993 (biocompatibility) and ISO 13485 (quality management); FDA-cleared in the U.S., CE-marked in the EU.
Dietary Silicon: Where It Comes From
Most people take in silicon from ordinary food and water without thinking about it. Drinking water is a major source because it often contains dissolved silicic acid; mineral waters can be richer in silicon than tap water. Among foods, unrefined cereals (oats, barley, rice, wheat bran) and root vegetables are repeatedly reported in the literature as good sources, with smaller amounts in fruits such as bananas and in some leafy vegetables.
Published dietary intake studies estimate typical adult intakes in Western-style diets at roughly 20–50 mg of silicon per day, with plant-based diets generally higher. These are population-level research figures, not individual recommendations. No intake target for silicon has been set by authorities such as EFSA, and any decision about supplements should be made with a doctor or a registered dietitian.
| Source category | Examples | Notes |
|---|---|---|
| Drinking water | Tap water, mineral water | Contains dissolved silicic acid; mineral water is often higher in silicon |
| Cereals | Oats, barley, rice, wheat bran | Unrefined grains are generally richer than refined ones |
| Vegetables | Root vegetables, leafy greens | Content varies with soil and plant type |
| Fruits | Bananas, some berries | Smaller amounts than cereals, but still part of a normal diet |
| Beverages | Some beers (malt-derived silicon) | Alcohol carries its own health risks; moderation is advised |
Note: Figures reflect published dietary intake research (general population estimates), not individual medical guidance.
Silicon Supplements and Industrial Silicon: Two Things to Keep Apart
Silicon supplements - silica capsules, orthosilicic acid gels, horsetail-based products - are sold in many markets, and EFSA has reviewed some silicon compounds as acceptable food-supplement ingredients. However, no disease-prevention or disease-treatment claim for silicon has been approved by regulators such as EFSA or the U.S. FDA. If a product says it "cures" a disease, that claim is not supported and should not be trusted.
A separate, practical point matters for this site's readers: the silicon metal, ferrosilicon and silicon powder supplied by industrial traders - including our own company - are metallurgical raw materials for steelmaking, foundries and the aluminum industry. They are not food-grade and must never be ingested. Keeping "industrial silicon," "dietary silicon" and "medical silicone" clearly separate is important for both personal safety and honest communication between suppliers and buyers.
Frequently Asked Questions
Q1. Does silicon cure any disease?No. No scientific authority or regulatory body recognizes silicon as a treatment for any disease. Content claiming otherwise is misleading. For real health problems, consult a doctor.
Q2. What is the difference between silicon and silicone?Silicon is a chemical element (Si), a metalloid used in industry. Silicone is a synthetic polymer made from silicon, oxygen, carbon and hydrogen, used in sealants, kitchenware and medical devices. They are different substances that people often confuse.
Q3. Is silicon essential for humans?Silicon is regarded as a beneficial trace element, found mainly in bone and connective tissue, but no official dietary requirement has been established. It is not a medicine and no deficiency disease caused by silicon has been scientifically confirmed.
Q4. Can silicon supplements prevent or treat illness?There is no approved evidence that they can. EFSA and the U.S. FDA have not approved disease-related claims for silicon. Talk to a doctor or registered dietitian before taking any supplement.
Q5. Is the silicon sold by metallurgical suppliers safe to eat?No. Metallurgical silicon metal, ferrosilicon and silicon powder are industrial raw materials for steel and alloy production. They are not food-grade and must never be ingested.
Q6. Why does a silicon metal supplier publish a health-related article?Because "silicon" is often confused with "silicone" and with dietary silicate. We publish this article to clarify the differences, so that buyers and general readers are not misled by online claims, and to draw a clear line between our industrial products and anything food- or medicine-related.
This article is for general information only and does not replace professional medical advice. Consult a qualified physician about any health question.
