Vitamin D3

  • Boosts cognitive function
  • Promotes bone health
  • Prevents diabetes
  • Boosts immunity
  • Protects vision
  • Boosts fertility
  • Relieves migraines
  • Fights breast cancer
  • Improves sleep
  • Promotes cardiovascular health

Best Vitamin D3 Products

Best Seller No. 1
NatureWise Vitamin D3 5,000 IU for Healthy Muscle Function, Bone Health, & Immune Support | Non-GMO in Cold-Pressed Organic Olive Oil & Gluten-Free (Packaging May Vary) [1Year Supply - 360 Count]
7,934 Reviews
NatureWise Vitamin D3 5,000 IU for Healthy Muscle Function, Bone Health, & Immune Support | Non-GMO in Cold-Pressed Organic Olive Oil & Gluten-Free (Packaging May Vary) [1Year Supply - 360 Count]
  • 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.
Best Seller No. 2
NOW Supplements, Vitamin D-3 5,000 IU, High Potency, Structural Support*, 240 Softgels
2,888 Reviews
NOW Supplements, Vitamin D-3 5,000 IU, High Potency, Structural Support*, 240 Softgels
  • Highest Potency
  • Helps Maintain Strong Bones*
  • Supports Immune System*
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
Best Seller No. 3
Vitamin D3 (5000iu/125mcg) Enhanced with Coconut Oil for Better Absorption ~ Non-GMO & Gluten Free (360 Mini Liquid Softgels)
4,499 Reviews
Vitamin D3 (5000iu/125mcg) Enhanced with Coconut Oil for Better Absorption ~ Non-GMO & Gluten Free (360 Mini Liquid Softgels)
  • 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).^
SaleBest Seller No. 4
Nature Made Vitamin D3 1000 IU (25 mcg) Softgels, 300 Count for Bone Health† (Packaging May Vary)
641 Reviews
Nature Made Vitamin D3 1000 IU (25 mcg) Softgels, 300 Count for Bone Health† (Packaging May Vary)
  • 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 300-day supply of Nature Made Vitamin D 1000IU (25mcg), 300 softgels per bottle.
  • Vitamin D supports bone, teeth, muscle and immune health
  • Adults, take 1 softgel daily with water and a meal.
  • 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.
Best Seller No. 5
Vitamin K2 + D3 with Organic Coconut Oil for Better Absorption | 2-in-1 Support for Your Heart, Bones & Teeth | Vegan Certified, GMO & Gluten Free (60 Veggie Softgels)
2,375 Reviews
Vitamin K2 + D3 with Organic Coconut Oil for Better Absorption | 2-in-1 Support for Your Heart, Bones & Teeth | Vegan Certified, GMO & Gluten Free (60 Veggie Softgels)
  • 2-in-1 SUPPORT: 5000 IU (125mcg) of Vitamin D3 & 100 mcg of Vitamin K2 MK-7 for bone health, muscle function and energy support.*
  • BETTER THAN THE REST: The only Non-GMO Verified, Vegan Certified, 100% Plant Based Vitamin K2+D3 available. Free of Animal Ingredients such as Lanolin and Bovine.
  • PLANT-BASED INGREDIENTS: 100% Vegan Vitamin D3 from Lichen and MenaQ7 Vitamin K2 from Chickpea encapsulated in a Non-GMO Tapioca softgel capsule.
  • WITH COCONUT OIL: Vitamin K2 & D3 are both fat soluble and difficult for the body to absorb if not taken with a fat. To help absorption we blend our product with Coconut Oil.
  • MONEY BACK GUARANTEE: All Sports Research (SR) Vitamins & Supplements come with a 90 day Money Back Guarantee (See below for details).^
Best Seller No. 6
Now Supplements, Vitamin D-3 2,000 IU, High Potency, Structural Support*, 240 Softgels
686 Reviews
Now Supplements, Vitamin D-3 2,000 IU, High Potency, Structural Support*, 240 Softgels
  • Highest Potency
  • Helps Maintain Strong Bones*
  • Supports Immune System*
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
SaleBest Seller No. 7
Nature Made Extra Strength Vitamin D3 5000 IU (125 mcg) Softgels, 180 Count for Bone Health† (Packaging May Vary)
1,199 Reviews
Nature Made Extra Strength Vitamin D3 5000 IU (125 mcg) Softgels, 180 Count for Bone Health† (Packaging May Vary)
  • 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.
SaleBest Seller No. 8
Vitamin D 10000 IU Huge Size 400 Softgels | Max Potency | Promotes Strong Bones and Teeth | Non-GMO, Gluten Free Supplement | by Carlyle
  • Non-GMO; Free of Gluten, Wheat, Yeast, Milk, Lactose and Soy
  • Vitamin D promotes calcium absorption and supports healthy immune function*
  • This supplement now contains 250 micrograms (mcg) per softgel
  • Vitamin D3 is also known as cholecalciferol
  • Our easy to swallow softgel is great for men, women and adults
SaleBest Seller No. 9
Vitafusion Vitamin D3 Gummy Vitamins, 150 ct
  • Bone and Immune System Support[1]
  • The only gummy vitamin brand with Clinically Proven Absorption [4]
  • Contains NO high-fructose corn syrup, NO artificial sweeteners, NO gluten, NO dairy and NO synthetic (FD&C) dyes; Non-GMO[6]
  • Natural peach and berry flavors
  • Recipient of the 2018 ChefsBest Excellence Award. The ChefsBest Excellence Award is awarded to brands that surpass quality standards established by independent professional chefs.
SaleBest Seller No. 10
Solaray Vitamin D3 + K2 | D & K Vitamins for Calcium Absorption and Support for Healthy Cardiovascular System & Arteries | Non-GMO & Soy-Free | 120Ct
  • HIGH-POTENCY: 5000 IU of D-3 Cholecalciferol w/ 50mcg of K-2 Menaquinone from fermented chickpea
  • SYNERGISTIC TEAM: D3 & K2 work together to help transport & absorb calcium for healthy bone support
  • NUTRITIVE SUPPORT: Vitamins D3 and K2 may help support healthy arteries & cardiovascular system
  • LAB VERIFIED: Non-GMO & free of artificial colors, flavors & preservatives; tested for purity
  • CUSTOMERS SAY: I am very happy to see the results from taking the Solaray brand.

What is Vitamin D3?

Vitamin D3 is the common name for cholecalciferol.Vitamin D3 has two distinct uses. It can be taken as a supplement to improve our overall health or taken to treat osteoporosis. Many people with a vitamin d deficiency are told to include Vitamin D3 supplements in their diet.

Vitamin D3 also assists the kidneys to recycle phosphate back into the blood, helping the blood stay at the right pH.

Sunlight is a natural source of vitamin D3. People who stay inside most of the time (people in nursing homes or bedridden hospital patients) are most likely to be deficient of vitamin D3

Also, the darker your skin, the more sunlight you need to keep vitamin D3 at healthy levels. This is because the extra melanin found in darker skin slows the absorption of vitamin D3.

Best 10 Benefits of Vitamin D3

Vitamin D consists of five forms, including cholecalciferol, or vitamin D3. This fat-soluble nutrient and prohormone is naturally present in only few foods, though additional vitamin D can be obtained through sun exposure. Aversion to the sun can lead to a vitamin D deficiency; also, individuals with darker skin are more prone to this deficiency, as melanin slows the absorption of vitamin D3. This vitamin has many benefits, including treating osteoporosis and depression. Let’s examine these benefits in greater depth.

1. Boosts cognitive function

Research has shown that the brain has numerous vitamin D receptors. Without adequate D3, cognitive function can become impaired, leading to mood disorders, poor memory, anxiety, and depression.

2. Promotes bone health

Women deficient in vitamin D3 are significantly more prone to bone fractures and osteoporosis. This is because the vitamin aids in the absorption of calcium and phosphorus, two nutrients that maintain bone density.

3. Prevents diabetes

A deficiency in vitamin D3 impairs the secretion of insulin and glucose. This vitamin stimulates the pancreas, which is responsible for producing and secreting insulin. By consuming the proper amount of vitamin D3, diabetes becomes much more manageable.

4. Boosts immunity

Vitamin D3 puts cells in the immune system on high alert when pathogens enter the body. This vitamin activates these cells so they can kill toxins that would cause disease. Vitamin D3 also prevents several types of autoimmune disease.

5. Protects vision

Recent studies have shown that a healthy intake of vitamin D3 prevents vision loss and other eye disorders such as dry eye syndrome and age-related macular degeneration.

6. Boosts fertility

Struggling with fertility? You may have low levels of vitamin D3. Proper intake of this vitamin aids in the production of sex hormones. A deficiency can cause polycystic ovary syndrome, PMS, and even infertility.

7. Relieves migraines

Research has shown that men with low vitamin D3 levels face twice the risk of developing chronic migraines than men with adequate levels. This is thought to be due to the vitamins anti-inflammatory properties that reduce inflammation in the brain.

8. Fights breast cancer

Recent research suggests that many cases of breast cancer are caused at least in part by a deficiency of vitamin D3. This vitamin hinders the growth and spread of cancer cells, making it an incredibly valuable supplement for women.

9. Improves sleep

A low intake of vitamin D3 can increase the risk of sleep disorders, while a healthy intake regulates your circadian rhythm and prevents sleep apnea and insomnia.

10. Promotes cardiovascular health

Vitamin D3 supplements can prevent numerous cardiovascular diseases such as stroke, heart attack, hypertension, atherosclerosis, peripheral arterial disease, and many more. It is extremely effective in maintaining a healthy blood pressure and preventing heart enlargement.


Real Supplements gives you the best Vitamin D3 on the market today. Our top-rated lists are fresh and current so you get the best options.

Real Supps Team

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Amazon Best Seller Products List Last Updated on 2020-01-18