2021's 10 Best Vitamin D3
TOP SUPPLEMENTS

Best Vitamin D3

Vitamin D3, or cholecalciferol, is a fat-soluble nutrient that functions more like a hormone than a vitamin. Every cell in the body has a vitamin D receptor, and this vitamin is thought to regulate thousands of genes.

Often known as “the sunshine vitamin,” our body produces most of it from cholesterol when our skin is exposed to sunlight. However, we also obtain some vitamin D3 from the following foods:

  • Fatty fish
  • Organ meats
  • Eggs
  • Dairy products
  • Fortified foods like cereal, soy milk, orange juice

Signs of Vitamin D3 Deficiency

It’s estimated that most people have sub-optimal vitamin D levels – below 20 ng/mL. If we think about how much time we spend indoors out of natural light these days, this makes sense. Having darker skin, living in a cold climate, smoking, and being vegetarian also increase the risk of vitamin D deficiency.

Common symptoms of low vitamin D include:

  • Fatigue
  • Muscle pains
  • Poor bone density and brittle bones
  • Low immunity
  • Insomnia
  • Seasonal affective disorder (SAD)

Luckily, supplementing with vitamin D3 can safely and effectively boost levels of this vitamin within the body and provides many health benefits.

Health Benefits of Vitamin D3

Essential for Healthy Bones

Vitamin D is most well-known for keeping our bones healthy and preventing fractures. Plenty of research confirms that it works by boosting the absorption and retention of calcium and phosphorus, which are both necessary for healthy bone mineralization and density.

If we don’t get enough, we risk developing bone pain, weak bones, bone loss, and fractures. This is especially apparent in older people.

Regulates Mood and Behavior

If you notice your mood changing during the colder months, you’re not alone.

There’s a link between vitamin D levels and feelings of well-being. It regulates mood and prevents depression, especially during the winter months when a lack of sunlight means vitamin D levels are at their lowest.

A 2009 study of women found that supplementing with vitamin D3 during winter increased blood levels of the vitamin and benefited their mood.

Another interesting study in 2019 found that when children had low vitamin D levels between the ages of 5-12, they were at higher risk for behavioral problems during their teenage years.

Supports Immunity

Vitamin D is necessary for a strong and regulated immune system. A low level of vitamin D is associated with autoimmune conditions and frequent infections. Ironically, our vitamin D levels are lowest during the germ-ridden winter months due to a lack of sunshine.

A 2010 study on school-going children found that supplementing with 1200IU of vitamin D3 daily during winter reduced the incidence of illnesses. It’s a good idea to supplement when defenses are low and you need help to fight off pathogens.

Vitamin D Considerations

Low vitamin D is commonly seen in people with insulin resistance and elevated blood sugar levels, and it may be why these conditions are on the rise. Low vitamin D impacts blood sugar by causing poor insulin secretion and sensitivity. Insulin is a hormone produced by the pancreatic beta-cells to remove sugar from the blood to be stored or used as energy.

One study on healthy adults found that higher vitamin D levels were associated with greater insulin sensitivity and better blood sugar levels. They also noted that people with low vitamin D were at greater risk of dysregulated blood sugar.

One of the mechanisms behind this may be that vitamin D encourages the absorption of calcium, a mineral needed for insulin secretion and insulin sensitivity.

Supplementing with vitamin D is generally safe, but it’s important to get your blood levels checked regularly. While rare, chronically high vitamin D levels could result in high blood calcium levels and tissue calcification. This occurs because vitamin D is fat soluble and excess amounts can get stored in the body instead of being purged in the urine.


2021's 10 Best Vitamin D3
TOP SUPPLEMENTS

Our list of the top 10 vitamin D3 supplements is organized to reflect what you most value in your supplements. First and foremost is quality. All ten of these top ten supplements meet high standards of quality and come from brands with a proven record in excellence and purity. Another important factor in deciding the top ten was cost. You don’t have to pay through the nose to get a high quality supplement. In addition, all the companies represented on our top ten list have stellar records with customer service and prompt shipping to ensure that your supplement experience is enjoyable from the first click to your final dose.

Nutricost Vitamin D3 is our #1 Rated Vitamin D3 Supplement, as it is high quality and half the price of its competitors. Nutricost Vitamin D3 features 10,000 IU of vitamin D3 in each capsule. Click Here for Lowest Price

Uniquely, Nutricost is one of the few companies that control the full chain of manufacturing, from sourcing to manufacturing in an FDA-registered facility to warehousing and fulfillment, ensuring strict quality standards are met. Nutricost also offers exceptional customer support for all of its products.

Priced under $14, Nutricost Vitamin D3 comes with 240 capsules, which is just $0.05 per capsule. With Nutricost, you can be assured that this product does NOT contain ANY extra ingredients, fillers, or preservatives.

Nutricost Vitamin D3 comes with a 120-day, no-questions-asked, money-back guarantee – the best guarantee on the market!

  • #1 vitamin D3 supplement
  • 10,000 IU of high-quality vitamin D3 in each capsule
  • Only a Nickel a Serving, compared to the average of a Dime!
  • Non-GMO, gluten-free, and made in the USA!
  • No artificial colors, flavors, or chemical preservatives
  • 120-day, no-questions-asked, money-back guarantee!
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • BONE HEALTH: Vitamin D3 supports calcium absorption and retention to support optimal bone health.*
  • COLON HEALTH: Supports colon health and breast and prostate tissue by supporting healthy cellular function.*
  • IMMUNE SUPPORT: Binds to receptors on immune cells, including lymphocytes and macrophages, supporting healthy immune function.*
  • PURE INGREDIENTS: Pure Encapsulations manufactures a line of hypoallergenic, research-based dietary supplements. Products are meticulously formulated using pure ingredients designed to deliver predictable results for the benefit of all patients, even the most sensitive.*
  • FREE FROM: Pure Encapsulations products are free from wheat, gluten, egg, peanuts, magnesium stearate, hydrogenated fat, artificial sweeteners and colors, and other unnecessary excipients. Any product containing ingredients derived from allergens, such as soy, dairy or shellfish is clearly labeled. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • NatureWise Vitamin D3 in certified organic olive oil helps to support teeth and bone health, provide immune support, and promote healthy muscle function.*
  • Our formula delivers the same biologically active form of vitamin D produced by the body as a result of sun exposure, without exposure to UVB rays
  • Get your daily dose. The Vitamin D Council recommends 5,000 IU Vitamin D daily for adults to achieve and maintain optimal levels.
  • Our Vitamin D 5000 IU softgels are easy to swallow. Some research indicates that vitamin D3 in liquid softgel form is more bioavailable than powdered or tablet forms.*
  • These Vitamin D3 immune support and bone health supplements are gluten-free and non-GMO. Third party tested for purity and potency.
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • THE SUNSHINE VITAMIN: Sports Research Vitamin D3 delivers the same biologically active form of vitamin D produced in the body as a result of direct sunlight without the risk of unprotected UVB exposure.
  • COCONUT OIL: The original Vitamin D3 brand with Coconut oil. Vitamin D3 is fat soluble and difficult for the body to absorb if not taken with a fat. To help aid with absorption we blend our Vtiamin D3 with Coconut Oil.
  • EASY TO SWALLOW: Contains 5000iu (125mcg) of Vtiamin D3 (as Cholecalciferol) in a easy-to-swallow liquid softgel capsule.
  • OVERCOME DEFICIENCY: As many as 50% of the people living in the United States may be deficient in Vitamin D.
  • MONEY BACK GUARANTEE: All Sports Research (SR) vitamins & supplements come with a 90 day Money Back Guarantee (See below for details).^
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • RAW VITAMIN D3: The only RAW, whole food, vegetarian Vitamin D3 delivered in a lipid base of Cracked Wall Chlorella – plus live probiotics and enzymes for optimal absorption and digestion
  • BONE HEALTH: This RAW food-created Vitamin D3 provides bone and joint support, colon and digestive support, memory & concentration, breast & prostate health, proper cell replication and immune system support
  • NATURAL VITAMIN D: Easily metabolized Vitamin D3 is preferred over D2 since it's in the form that comes from the most natural source possible--the sun and our food
  • VEGETARIAN VITAMIN: Our real food D3 vitamin is RAW, Vegetarian, Gluten Free, and Dairy Free with No Binders or Fillers
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • 120 Servings of Vitamin K2 + D3 in Every Bottle
  • Assists in the Activation of the Matrix GLA, A Protein That Aids in Preventing Calcium Buildup
  • 100 MCG of Vitamin K2 (mk7) and 5000 IU of Vitamin D3 in Every Serving
  • Non-GMO and Gluten Free
  • Made in a GMP Compliant, FDA Registered Facility
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • For a limited time, you may receive either bottle while we update our packaging. Both have the same great product inside. Based on new FDA regulations, you may also notice a change in the unit of measure and/or daily value for certain products.
  • Contains a 180-day supply of Nature Made Extra Strength Vitamin D3 5000IU (125 mcg), 180 softgels per bottle.
  • Vitamin D supports bone, teeth, muscle and immune health
  • This is a high dose vitamin D product for those with higher vitamin D needs and/or deficiency, as determined by a healthcare professional. Consult with your healthcare professional before use. Take one softgel daily with a meal. For easier swallowing, take with water before and during ingestion.
  • These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • Vitamin D3 is a more potent and bioavailable form compared to D2
  • Assists the body with calcium absorption
  • Bolsters the immune system
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • Supports Strong Bones & Teeth*
  • Supports Neuromuscular & Immune Health*
  • Your Sunshine Vitamin
  • Non GMO
  • Gluten Free
  • *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

  • 150 softgels, a five month supply (taken daily at listed serving size)
  • 125 mcg (5000 IU) vitamin D3 per serving (1 softgel)
  • No artificial colors, no artificial flavors. No gluten, no lactose
  • Satisfaction Guarantee: We’re proud of our products. If you aren’t satisfied, we’ll refund you for any reason within a year of purchase. 1-877-485-0385
  • An Amazon brand
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*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.