D'Adamo Phytocal Multimineral (Type O) contains Maerl, a small red seaweed, found off the coast of Ireland. The calcium in Maerl has a broad buffering range to work with all blood types. Phytocal O offers micro and macro minerals iron, copper, magnesium and zinc in balanced levels; micro-trace amounts of iodine to support healthy thyroid function; manganese to support healthy joint and ligament function; and nettle leaf to support proper intestinal assimilation. Recommended usage: Take two capsules 2-3 times daily with meals as a dietary supplement or as directed by your healthcare professional. D'Adamo Phytocal Multimineral (Type O) Facts: 2 capsules contain: Vitamin D (Cholecalciferol) 2.5 mcg Vitamin K (Phytonadione) 133.3 mcg Calcium (Seaweed Extract, Derived from Liothothamnium corallioides and Lithothamnium calcareum) 333.3 mg Iron (Ferrous Citrate) 3.3 mg Iodine (Potassium Iodide) 20 mcg Magnesium (Citrate) 66.6 mg Zinc (Aspartate) 5.3 mg Selenium (Picolinate) 13.3 mcg Copper (Aspartate) 0.3 mg Manganese (Picolinate) 3.3 mg Molybdenum (Citrate) 10 mcg L-Leucine 50 mg Stinging Nettle Leaf 16.6 mg Vanadium (Citrate) 16.6 mcg Other Ingredients: Vegetable Cellulose, Magnesium Citrate, Organic Rice Extract, and Organic Rice Concentrate. This product contains no sugar, salt, gluten, yeast, corn, soy, milk or egg products, no preservatives, color or flavors, and no artificial ingredients.