With so many things to remember, leave daily vitamin D to us. Nordic Naturals Vitamin D3 delivers 25 mcg (1000 IU) in the cholecalciferol form, the same form of vitamin D that the body makes from sunlight. For strong bones, immune benefits, and mood support—rain or shine.* Vitamin D3 ProOmega-D Vitamin D3 5000 About the Formula Daily vitamin D3 for bone, mood, and immune support* About the Formula Omega-3 fish oil with vitamin D3 for immune, brain, bone and heart support* About the Formula High-intensity vitamin D3 for even more bone, mood, and immune support* Key Ingredients Bioavailable vitamin D3 (cholecalciferol) Key Ingredients Triglyceride-form EPA & DHA; bioavailable vitamin D3 (cholecalciferol) Key Ingredients Bioavailable vitamin D3 (cholecalciferol) Potency 25 mcg (1000 IU) vitamin D3 Potency 1280 mg omega-3s; 25 mcg (1000 IU) vitamin D3 Potency 5000 IU vitamin D3 Format Mini soft gel Format Soft Gel Format Mini soft gel Available Flavors Orange Available Flavors Lemon Available Flavors Orange Does Nordic Naturals use independent labs for testing their products? Yes. We use ISO-accredited (or similar) third-party laboratories to independently verify our ingredients on all important measures of safety and quality, including freshness, purity, stability, potency, and the accuracy of dosage claims. Will I get fishy burps? Repeat burping or bad taste could mean your supplement may be oxidized. All Nordic Naturals fish oils are protected from exposure to oxygen at every step of production to help deliver an exceptionally fresh taste without fishy burps or aftertaste. Are there options for me if I have a hard time swallowing pills? Yes. We offer liquid options for many of our fish oil products, and our fish oil soft gels are chewable for those who have difficulty swallowing pills. Some products are also available in smaller, easier-to-swallow mini soft gels or chewable gummies. Are allergens present in Nordic Naturals products? We use FDA-compliant allergen labeling, and disclose any warnings relating to allergen exposure on our product labels. We recommend that consumers discuss product ingredients with a health care professional for any potential allergen concerns.