OnEnergy D3 + K1 + K2 FORTE combines three essential vitamins in a high-dose, synergistic formula – ideal for anyone wanting to specifically support bone health and blood clotting. The combination of vitamins D3, K1, and K2 complements each other perfectly and ensures effective nutrient supply, especially for physically active people or during times of increased need. Targeted support for bones and circulation Vitamin D3 contributes to the maintenance of normal bones, normal muscle function, and normal blood calcium levels. Vitamins K1 and K2 contribute to normal blood clotting and, together with D3, support bone metabolism. For sports, everyday life & recovery A balanced ratio of these three vitamins is crucial for strong bones, reliable blood clotting, and physical performance. Supplementation is especially recommended for athletes, older adults, and during the colder months with less sun exposure.