Do you have a tight budget yet want to consume top-quality and high-potency vitamin D3? California Gold Nutrition Vitamin D3 is a perfect choice. It is the cheapest vitamin D, delivering 5,000IU or 125mcg of vitamin D3-Cholecalciferol from lanolin in a single soft gel. This supplement will help you boost your immune system, support healthy bones and teeth and help you regulate the absorption of calcium and phosphorus. It is also gluten and soy-free and non-GMO.