High strength vitamin K2 (Menaquinone-7) plus natural vitamins A and D3 for comprehensive bone support. Key Features and Benefits:Source of menaquinone 7 (vitamin K2) to support vitamin K status and optimal bone health.With natural vitamin A to assist normal bone development and maintenance.With 400IU vitamin D3 to support calcium absorption.May support the maintenance of normal bone mineral density.May assist in maintenance of health and function of the immune system.May assist with normal blood coagulation in healthy individuals.May help to maintain the integrity of mucous membranes, the body's first line of defence.May support skeletal muscle and myocardial function