Nutrition Geeks' Vitamin D 4000 iu provides a one-year supply of 365 easy-swallow tablets to support your overall health and wellness. Made in the United Kingdom with gluten-free, non-GMO, and preservative-free ingredients, these tablets are designed to be taken daily to meet your recommended intake of vitamin D. With a serving recommendation of one tablet daily, this product ensures that you receive a consistent dose of this essential nutrient throughout the year. Store in a cool, dry place away from direct sunlight to maintain their potency and effectiveness.