Lifestream Natural Calcium is produced from a certified organic sea vegetable called Lithothamnium calcareum and demonstrates advanced bioavailability. Lifestream Natural Calcium is well absorbed owing to three unique aspects. It has a unique porous ‘honeycomb-like’ structure which reacts particularly well in the digestive system and gives it high absorption properties. Its molecule has a very large surface area, which allows faster solubilisation and rapid ionisation of the calcium. It also contains other important minerals necessary for the absorption of calcium including magnesium, boron, selenium, zinc, copper and iodine. This is a complete and natural calcium food that is highly absorbed and well utilised by the body. It is the only calcium supplement that is Certified Organic. It is also 100% dairy free, GE free, animal free, vegetarian and gluten free. It contains no preservatives or synthetic additives.