NatureWise Vitamin D3 5000iu is an essential nutrient for healthy bones, teeth, muscle function, and immune system support. It is all-natural, non-GMO, and gluten-free with no artificial additives, fillers, or binders. These Vitamin D3 supplements are manufactured in USA-based facilities that comply with the strictest cGMP standards and undergo rigorous testing by third-party labs to ensure the highest quality and purity. The product is delivered in softgel form, which may stick together during warm weather conditions but can be separated by shaking the bottle. The supplements are packaged in cold-pressed olive oil for better absorption.