Vitamin D3 and K2 are essential for overall health, supporting bone, heart and immune function. D3 helps absorb calcium, while K2 directs it to bones and teeth, preventing buildup in arteries. Sunlight exposure alone isn't sufficient and is leading to deficiencies in many adults. Daily supplementation of D3 and K2 (switch serving size) helps maintain optimal levels, especially if there is a reduced intake of animal products and greens.