What Is Silicon and Why Does Your Body Need It?
Silicon (dietary silica) is the second most abundant element on Earth and one of the more overlooked trace minerals in human nutrition. Although research is still evolving, studies suggest it plays a supporting role in collagen cross-linking, bone mineralisation, and connective-tissue integrity (Jugdaohsingh et al., 2004).
Most people consume silicon through plant-based foods such as whole grains, root vegetables, and drinking water — yet intake varies widely depending on diet and geography. In Estonia and across Scandinavia, where diets have shifted heavily toward processed foods, silicon intake from whole-food sources may be lower than in traditional plant-rich eating patterns.
Silicon Deficiency Symptoms
Because there is no established clinical test for silicon status in routine practice, deficiency is mostly inferred from dietary intake patterns rather than blood markers. That said, low silicon intake has been associated in observational research with:
- Fragile or slow-growing nails and hair — silicon contributes to keratin matrix strength.
- Dry, less elastic skin — collagen density depends partly on adequate silicon (Barel et al., 2005).
- Reduced bone density over time — silicon has been positively correlated with bone mineral density in epidemiological data (Jugdaohsingh et al., 2004).
- Joint discomfort — connective-tissue turnover may be impaired with chronically low intake.
None of these symptoms is specific to silicon alone; they overlap with many other nutrient shortfalls. If you notice several together, a broad nutritional review with your physician is the right first step.
Who Is Most at Risk?
Certain groups are more likely to have low dietary silicon intake:
- People eating heavily processed diets — refining strips most silicon from grains.
- Older adults — intestinal absorption of silicon may decline with age.
- Post-menopausal women — bone turnover increases at menopause; adequate silicon alongside calcium, magnesium and vitamin D supports bone health.
- Athletes with high connective-tissue demands — repeated loading on cartilage and tendons may increase trace-mineral requirements.
- Residents of soft-water areas — drinking water contributes a meaningful share of silicon in hard-water regions; soft water provides far less.
In Nordic countries, granite bedrock means many municipal water supplies are relatively soft, which can translate to lower silicon from that source.
How Is Silicon Status Assessed?
There is currently no widely validated clinical serum or urine test for silicon that is used in routine Estonian or European healthcare. Assessment relies mainly on:
- Dietary recall and food-frequency questionnaires comparing intake against population reference values.
- Research-grade urinary silicon measurements — used in epidemiological studies but not standard practice.
- Proxy markers such as nail quality, hair tensile strength, and bone density scans, interpreted alongside diet history.
If you are concerned about your silicon intake, a nutritionist consultation is the most practical route in Estonia.
Nordic and Estonian Context
Traditional Estonian cuisine included oats, barley, and root vegetables — all reasonable silicon sources. Modern diets often replace these with refined grains and processed snacks that have lost most of their natural silicon. The shift also means less exposure to whole-grain silica in the daily diet of many Estonians.
Finnish and Swedish cohort data suggest that adults in the Nordic region average moderate silicon intakes, with wide individual variability. Athletes and fitness enthusiasts who eat clean whole-food diets typically score higher than those relying on convenience foods.
When to Supplement vs Relying on Diet
For most people, a diet rich in oats, barley, whole-wheat bread, root vegetables, green beans, and mineral water provides adequate silicon without supplementation. However, supplementation may be worth discussing with a healthcare professional if:
- Your diet is heavily refined and plant-poor.
- You have documented low bone density or connective-tissue problems.
- You are post-menopausal and looking for a comprehensive bone-support stack.
Silicon supplements are available in several forms, including orthosilicic acid and horsetail extract. At maxfit.ee you can explore the range of connective-tissue and bone-support supplements to complement a balanced diet.
References
Jugdaohsingh, R., Anderson, S. H. C., Tucker, K. L., Elliott, H., Kiel, D. P., Thompson, R. P. H., & Powell, J. J. (2004). Dietary silicon intake and absorption. The American Journal of Clinical Nutrition, 75(5), 887-893.
Barel, A., Calomme, M., Timchenko, A., De Paepe, K., Demeester, N., Rogiers, V., Clarys, P., & Vanden Berghe, D. (2005). Effect of oral intake of choline-stabilized orthosilicic acid on skin, nails and hair in women with photodamaged skin. Archives of Dermatological Research, 297(4), 147-153. https://pubmed.ncbi.nlm.nih.gov/16205932/
Cockell, K. A., Bonacci, G., & Belonje, B. (2000). Silicon content of a rat diet based on processed American foods. Food and Chemical Toxicology, 38(11), 931-937.
FAQ
Can silicon deficiency cause hair loss?
Silicon does not appear to cause hair loss directly, but low intake is associated with reduced hair tensile strength and slower growth in observational research. Hair loss has many causes; if it is significant or sudden, see a physician.
Does drinking tap water provide enough silicon?
It depends on your local water hardness. Hard water regions (rich in calcium and magnesium silicates) deliver more silicon via tap water. In soft-water areas common in parts of the Baltics and Scandinavia, dietary sources matter more.
Is it safe to take silicon supplements long-term?
Orthosilicic acid forms are generally regarded as safe at typical supplement doses, but human long-term trial data are limited. Always follow label directions and consult a healthcare professional before starting any new supplement.
