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Kirkland Signature Extra Strength D350 mcg (2000iu) 600 Softgels Free Shipping Exp. 08/2025 Features:The Sunshine VitaminSupports Bone and Immune Health†USP VerifiedImportant for healthy bones, teeth and muscles, Kirkland Signature Vitamin D3 2000 IU also supports immune system health. Kirkland Signature Vitamin D3, the form of vitamin D that your body prefers is a great way to ensure you are getting enough of this essential micronutrient to support overall health.†• Helps support for bone, teeth, muscle and immune health.†• Helps improve intestinal calcium absorption in the body.†What is Vitamin D?Vitamin D is a fat-soluble vitamin that is unique because it is the only nutrient that can be synthesized by the skin from ultraviolet rays. In the food supply, there is a paucity of foods that naturally contain vitamin D. Instead most dietary vitamin D is consumed through fortified foods, although still in relatively small amounts. Vitamin D supplements are a prudent option to fill nutrient gaps that often exist for this crucial micronutrient.† Vitamin D2, or ergocalciferol, is plant-derived, while vitamin D3, cholecalciferol, is animal-derived and is the body’s preferred form based on research that demonstrates its superior ability to raise and maintain vitamin D levels in the blood.1†As the scientific body of literature matures, the diversity of vitamin D’s influence in the body is being elucidated. Receptors for vitamin D have been discovered in cells throughout the body. Currently, the strongest science supports vitamin D’s role in bone, teeth, muscle and immune health. By enhancing calcium absorption from food and supplements and playing an important role in calcium and phosphorus homeostasis and bone remodeling processes, vitamin D supports strong bones and teeth. 2,3In fact, vitamin D deficiency results in bone softening and deformation, referred to as rickets in children and osteomalacia in adults. In combination with calcium, vitamin D supports bone mineralization processes, and inadequate intake of these nutrients increases one’s risk for osteoporosis, falls, and fractures.2 ,3 Additionally, normal muscle and immune system function require vitamin.Recommended IntakeA common range of vitamin D recommended by healthcare professionals is 1,000-5,000 IU per day for general health.4 Your primary healthcare provider can assess your vitamin D status through a simple blood test that measures the level of the serum biomarker 25-hydroxyvitamin D and can recommend a personalized vitamin D supplement regimen to attain healthy vitamin D levels.4Naturally, few foods contain vitamin D. Fatty fish (e.g. salmon, mackerel, sardines) and fish liver oil are among the best natural sources of vitamin D3, while egg yolks and cheese also provide small quantities. Mushrooms are a variable source of vitamin D2, with irradiated mushrooms offering enhanced vitamin D2 levels after exposure to UV light under controlled conditions. Fortified foods, such as cow milks, cow milk substitutes, infant formula, orange juices, breads and cereals, also provide a dietary source of vitamin D.Nationally representative research demonstrates that the large majority (93%) of Americans are failing to consume adequate vitamin D through diet alone.5 As a result, approximately 1/3 of Americans have a blood level of vitamin D that is insufficient or deficient. A vitamin D supplement can help address this key nutrient gap.4,6Supplement FactsOur formulation has not changed but the label may look differently now. New FDA regulations are bringing changes to the Supplement Facts panel, including updated daily values, changes to units of measure and more. To help you understand the changes we have provided both the old and new Supplement Facts panel for your comparison below.Suggested Use: Take one softgel daily with a full glass of water preferably with a meal.Ingredients:Soybean Oil, Gelatin, Glycerin, Water, Corn Oil, Carmel (artificial color), Vitamin D3 (Cholecalciferol). No Artificial Flavors, No Preservatives, No Yeast, No Starch, No Gluten.Keep out of the reach of children.Store at room temperature, tightly closed.Avoid excessive heat.CAUTION: If you are pregnant, nursing, or taking any medications, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur. USP VerifiedThis item is verified by the United States Pharmacopeia (USP) which is an independent, scientific, non-profit organization that sets strict quality and purity standards for dietary supplements manufactured and distributed worldwide. The USP’s drug standards are enforceable in the United States by the Food and Drug Administration. Payment: I accept payments through PayPal only! Returns: I offer returns if you mail back the item within 30 days. Buyer pays return shipping. The product you return must be in the same condition you received it. Sealed, unopened, and undamaged. I will refund you full price less 15% restocking fee.​​​​​​Shipping & Handling: Item will ship within 1 business day upon receipt of payment. I only ship to a PayPal verified address. Be sure to have correct address when checking out. Buyer will be responsible for shipping/handling cost in case of wrong or undeliverable address.DOMESTIC: Free Domestic Shipping including tracking information.INTERNATIONAL: Orders are shipped via USPS First Class Mail International or USPS Priority which takes around 10- 15 business days. However, your package can be held at your custom over 30 days(every country is different)! All international buyers are responsible for customs duty and associated service fees. ​​​​​​​Buyers are responsible to inquire about import regulations/restrictions with your country’s custom before you place an order,as we will not be liable for packages refused or held for delivery. Thanks for shopping with us. Your business is appreciated.We look forward to providing the best service for you!