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Table 1 Typical mineral composition of Aquamin*

From: A natural seaweed derived mineral supplement (Aquamin F) for knee osteoarthritis: A randomised, placebo controlled pilot study

Mineral Dry salt weight
Calcium 34%
Magnesium 2.4%
Phosphorous 0.08%
Potassium 0.7%
Sulphur 0.67%
Iron 915 ppm
Boron 16.5 ppm
Sodium 0.225%
Manganese 125 ppm
Cobalt 0.1 ppm
Copper 10 ppm
Zinc 26.1 ppm
Selenium 1 ppm
  1. * Aquamin contains a wide spectrum of trace minerals assimilated from sea water. Aquamin is a natural ingredient and trace mineral levels may vary over time.