Credible objective research shows 45mg (15mg/3 servings) of K2 MK-4 to be effective for bone support. Furthermore, a recent three-year long study published in "Osteoporosis International" (September 2013, Volume 24, Issue 9, pp 2499-2507) documents the bone health benefits of 180 mcg daily of MK-7 Vitamin K2. This research supports the dose per capsule of 60mcg (60mcg x 3 daily serving=180mcg). Multiple previous studies have documented the efficacy of 45mg daily (15mg x 3=45mg) of MK4 Vitamin K2. Please be careful to recognize and understand mg vs mcg when comparing products. It is critical to know that some supplement manufacturers use a cheap, poorly biovailable "high CIS Form" K2 when formulating their products. Companies use high-CIS K2 because it is FAR cheaper and they can make a higher profit. The Relentless Improvement brand K2 is the highest-possible quality at a cost-effective price giving you excellent value. Details matter. Be a careful and informed shopper.