Vitamin D Redefined

Vitamin D Redefined

9 reviews


What Redefined Vitamins® says about Vitamin D Redefined:

Supports Bone, Cardiovascular, and Immune Health

Almost all of us have low vitamin D levels and research makes it clear that vitamin D is associated with metabolism, mood, energy levels, immunity, bone health, digestion, disease prevention…and just about everything else. The two primary ways to get vitamin D are exposing your skin to sunlight and taking a vitamin D supplement. Very few foods contain vitamin D, so it’s virtually impossible to get the recommended amount of it through eating. This vitamin D supplement is in the purest form and is most absorbable.

How Vitamin D Redefined Works:

Vitamin D is a term that refers to a group of five fat-soluble vitamins that are classified as secosteroids, with research suggesting vitamin D3 (cholecalciferol) as being the most important form in humans. Since we produce much of our natural vitamin D transdermally (through the skin) via sunlight exposure, it is imperative that oral supplementation of vitamin D come in the form of D3 as this is the most bioavailable form of vitamin D in a softgel, maximizing its absorption into the body.

Technically speaking, vitamin D3 is structurally similar to cholesterol and is converted via the liver and kidneys to its active form, calcitriol. Calcitriol performs many roles in the body and is particularly crucial for proper absorption of the minerals calcium, iron, magnesium, phosphate, and zinc. Calcitriol also supports and promotes bone growth and regeneration, as well as immune, cardiac, and neuromuscular functions.

It is crucial to obtain adequate amounts of vitamin D on a daily basis, as deficiency can lead to a host of health issues, including, but not limited to rickets, Fanconi syndrome, autoimmune diseases, non-alcoholic fatty liver disease, and osteoporosis.

Vitamin D Redefined Supplementation:

Given the importance of adequate vitamin D levels in the body and many people’s lack of exposure to direct sunlight, Vitamin D Redefined supplementation can help users in a variety of ways. The most relevant research-backed benefits derived from consumption of vitamin D3 include:

  • Supports cardiovascular function
  • Supports healthy mood and stress levels
  • Supports bone and skin tissues
  • Supports immune function

General recommendation: Take one softgel daily or as directed by your healthcare practitioner. Do not exceed recommended dosage unless directed by your healthcare practitioner.

120 softgels per bottle

Serving size: 1 softgel

One softgel supplies:​

Ingredient Amount Daily Value
Vitamin D3 (as cholecalciferol) 125 mcg (5,000 IU) 625%
* Percent Daily Values (DV) are based on a 2,000 calorie diet.

Other Ingredients: Safflower oil, olive oil, gelatin, glycerin, and water.

If you are pregnant, nursing, or taking medication, consult your healthcare practitioner before use. Keep out of reach of children.

Warnings: It is highly recommended that serum 25(OH)- and 1,25(OH)2-vitamin D be monitored every 60-90 days while consuming this product to ensure that levels remain in an acceptable range.

* These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

Returns Policy

At Redefined Vitamins®, we want you to be 100% satisfied with your purchase! If you aren’t, let us know. You may return any eligible unopened item within 30 days of purchase. All products requiring refrigeration are non-refundable unless something is wrong with the product. Products must be returned at your expense unless there is something wrong with the product.

Contact our customer service team to initiate the return process. For questions about returns, contact us at Your satisfaction is important to us!


Shipping is FREE anywhere in the continental U.S. for all orders over $75! For more details on our shipping fee structure, please visit our FAQ page here > We ship orders Monday through Friday.

Our goal is to get products in your hands fast. Once you place your order, we will process it and get it out to you as soon as possible. We usually ship the same day your order was placed, or the next business day (M-F), except for extra-perishable items that might spoil if left on a delivery truck for extended periods of time. In cases like these, if you place an order for a perishable product on a Thursday or Friday, we would wait until Monday to send it. Your order will typically arrive within two to five (2-5) business days after it is placed. You will receive an e-mail notification after you place your order and again when your order has shipped.

International Shipping: some products, such as probiotics, we can’t ship internationally due to a scanning procedure that kills the bacteria in the probiotic, rendering it useless. Please contact our customer support team at and provide the specific products you would like to purchase and your mailing address. We will do our best to fulfill your order, and we’ll provide an estimated shipping cost specifically for you.

Customer Reviews
4.9 Based on 9 Reviews
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Filter Reviews:
Joan O.
United States United States

Been Using This for Years

Vitamin D is Vitamin D and we all need it living in Minnesota. Easy to order and quick delivery.

Brittany A.
United States United States

Great vitamins

These vitamins work great.

Michele G.
United States United States

Vitamin D

I buy this regularly. It’s an awesome product!!

Marti L.
United States United States

Great quality great price

I have been taking various supplements from redefined for a while now and I have not been disappointed. I love the quality of their vitamins. The vitamin D is great as well and I feel incorporating them into my current regimen. Thanks for making a great product

karen h.
United States United States

Best Vitiman D

Great product. Easy to take, very clean/natural supplement, and the customer support is amazing. Would highly recommend.

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