Colloidal Silver - though considered a powerful germicide - when taken in excess amounts can be a potential toxin to living tissues. As silver has no known biological function in the human body, it will be excreted within 24 hours. But, only a small quantity - approximately 50 mcg per day - can be excreted. The remaining silver particles are deposited under the skin and tissues as silver sulfide. This probably leads to many health issues.

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Argyria is one of the serious side effects caused by the prolonged ingestion of colloidal silver. It is a dermatological condition, characterized by grayish-blue pigmentation of the whole body. No effective treatment is available for argyria. However, no known cases of argyria have been reported from pure and protein-free colloidal silver.

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Excess colloidal silver consumption can even cause arteriosclerosis or the hardening of arteries. If left unchecked, arteriosclerosis often ends up in a heart attack. Deposition of colloid silver on the tissues results in organ damage and it also affects the normal immune processes. Intake of large doses can also cause neurological problems like seizures. Other possible side effects include stomach distress, headaches, skin irritations, and fatigue.

Sometimes, colloidal silver reacts with certain drugs like thyroxine, penacillamine, quinolones, and tetracyclines. So, great care must be taken while using these products, especially during pregnancy. Individuals with kidney trouble and liver disease should also limit the intake of colloidal silver, as they are more susceptible to silver toxicity.

In the light of the above facts, the U.S. Food and Drug Administration (FDA) has refused to approve the use of colloidal silver supplements for medicinal purposes. No colloidal silver ingredients or products are considered safe or effective. Moreover, the FDA has taken serious action against many companies for making unsubstantiated drug-claims for their over-the-counter colloidal silver products. Only those products approved under the FDA?s drug application procedure can be sold as drugs.

Colloidal Silver Side Effects

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