ADK (60)

What It Is ADK by DaVinci Labs is a practitioner-grade, single-capsule formula combining three essential fat-soluble vitamins: Vitamin A as Retinyl Palmitate, Vitamin D3 as Cholecalciferol, and Vitamin K2 as MK-7 (Menaquinone-7). Each ingredient is delivered in its most bioavailable and clinically recognized form at a concentrated, high-potency dose appropriate for clients with documented or suspected insufficiency, or those under active practitioner supervision. The formula is vegetarian, gluten-free, soy-free, and non-GMO, with a minimal excipient profile that reflects DaVinci Labs' commitment to formulation integrity. How It Works The physiological rationale for combining Vitamins A, D3, and K2 lies in their deeply interconnected roles in calcium metabolism, bone remodeling, and soft tissue protection. Vitamin D3 as Cholecalciferol stimulates intestinal calcium absorption and upregulates calcium-binding proteins, dramatically increasing the amount of calcium available to the body. Without adequate Vitamin K2, however, that calcium must be precisely directed; K2 activates two critical Gla-proteins: osteocalcin, which incorporates calcium into the bone matrix, and Matrix Gla Protein (MGP), which inhibits calcium deposition in arterial walls and soft tissues. The MK-7 form of K2 is particularly advantageous due to its extended plasma half-life and superior extrahepatic tissue distribution compared to shorter-chain menaquinones. Vitamin A as Retinyl Palmitate completes the triad by supporting osteoblast and osteoclast activity for proper bone remodeling, while also modulating immune gene expression through its role as a ligand for retinoid receptors. Together, these three vitamins function as a coordinated system supporting skeletal architecture, cardiovascular calcium regulation, and immune resilience. When to Use It ADK is well suited for clients presenting with low bone mineral density, vitamin D insufficiency, or those undergoing evaluation for cardiovascular calcium dysregulation. It is particularly relevant for postmenopausal women, older adults at elevated fracture risk, clients with malabsorption conditions affecting fat-soluble vitamin uptake, or individuals with chronically limited sun exposure. Because this formula delivers 5,000 IU of D3 per capsule, it is intended for use under practitioner guidance with periodic monitoring of serum 25(OH)D levels. Clients on anticoagulant medications, particularly Warfarin, should be assessed carefully prior to initiation given Vitamin K2's interaction with clotting pathways.