Osteo-Mins PM with D+K1, K2 uses both vitamin K1 and K2. Vitamin K is necessary for the synthesis of osteocalcin, the protein in bone tissue upon which calcium crystallizes. However, patients taking medications to prevent blood clotting must carefully monitor their intake of vitamin K. Bioavailable calcium is essential for bone health; however, bone is complex living tissue that, like other body tissues, has a wide range of nutritional needs. The Osteo-Mins formulas were developed and formulated by Jonathan V. Wright, M.D., author of Nutrition and Healing. In addition to calcium these formulas supply strontium, boron, silicon and other vitamins and trace minerals shown by research to support bone growth.* The Osteo-Mins AM formula containing strontium, zinc, selenium, copper, manganese, molybdenum, boron and silicon is taken in the morning. The Osteo-Mins PM formula containing calcium, magnesium, vitamin D (or vitamins D and K) are taken at bedtime. Many researchers feel when these nutrients are taken at different times during the day, assimilation of all nutrients is improved.Suggested Use Eight capsules daily in the PM, or as directed by a health care professional. Serving Size:8 Capsule Servings Per Container: 30 Amount Per Serving % Daily Value Vitamin D3 (as cholecalciferol) 1000 IU 250% Vitamin K1 (as phytonadione) 1000 mcg 1250% MenaQ7 Vitamin K2 (as menaquinone 7) 100 mcg 125% Calcium (as calcium citrate) 1000 mg 100% Magnesium (as magnesium citrate) 300 mg 75% Other Ingredients: gelatin, rice flour, vegetable lubricant Warnings Not to be used by pregnant or lactating women. Patients receiving anticoagulant therapy should consult their physician, because this product contains a large amount of vitamin K which decreases the biological activity of anticoagulants. Tamper evident band around cap and seal on bottle. Do not use if either seal is broken or missing. Keep out of reach of children. May contain soy.