90 VTabs of Vitamin D (400iu) 10g - 400iu of Plant Based Vitamin D3. Sometimes called the 'sunshine' vitamin, Vitamin D is crucial for the proper absorption of calcium and potassium. These in turn help with the absorption of magnesium. Altogether these nutrients help to maintain healthy bones (osteoporosis) and teeth as well as maintaining neuromuscular function. This handy supplement gives a great daily intake in one easy-to-take small tablet of vitamin D3, derived from plant-based ingredients.