The 6 Best Vitamin D Supplements of 2020, According to a Dietitian

Help maintain strong bones with this sunshine in a bottle formula

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Our Top Picks

Nordic Naturals Vitamin D3 at Amazon

"Provides 1,000 IU in a small capsule form."

NatureWise at Amazon

"A great option for anyone looking to improve their Vitamin D levels without taking a supplement daily."

Caltrate at Amazon

"Caltrate combines Vitamin D3 with 600 mg of calcium making this product a great choice for bone health."

Kirkland Signature D3 at Amazon

"Does not contain harmful levels of specified contaminants"

Solgar at Amazon

"For those who do not have a Vitamin D deficiency but want to supplement a wholesome diet and lifestyle that includes the outdoors."

Megafood at Amazon

"combines the Vitamin D3 with extracts from whole foods such as broccoli leaf, brown rice, parsley, carrot, and beetroot."

Although we call Vitamin D a vitamin, it really is not a vitamin at all. Vitamins are substances that the body needs in small amounts from food because we cannot synthesize them on our own. Vitamin D differs from other vitamins because we can make it following exposure to sunlight. Interacting with more than 30 different tissues in the body and affecting more than 1,000 genes. Vitamin D is important for many body processes, not just maintaining bone health. Immune function, muscle strength, disease prevention, and mood stability are all affected by Vitamin D.

Unfortunately, Vitamin D intake is widely insufficient throughout the United States. Low Vitamin D intake can be caused by poor diet, lack of sun exposure and/or malabsorption issues. It is important to note that in order to maximize the use of the following supplements, these products should be taken with meals to support adequate absorption.

Here, the best Vitamin D supplements for your dietary needs.

Our Top Picks

Nordic Naturals Vitamin D3

Nordic Naturals D3 1,000 IU is an excellent product that is budget-friendly, non-GMO, third-party tested, gluten and additive-free. Nordic Naturals is frequently listed on sites such as Labdoor as a trusted brand. Consumers note that they find ease taking them because of the small, gen capsules.

NatureWise

Though there are some concerns that too much vitamin D can be bad for your health, some believe that more is better. NatureWise Vitamin D3 5,000 IU is a great option for anyone looking to improve their Vitamin D levels without taking a supplement daily. Unlike a dose of 1,000 or 2,000 IU that can be taken every day, a higher dose of 5,000 IU could be taken every other day or a few times per week which is nice for anyone who may have trouble with supplement compliance.

Naturewise boosts the efficacy of each capsule by combining organic extra-virgin olive oil with the D3 to support absorption. Non-GMO and gluten-free, Naturwise also claims to use third-party laboratories to test their products for quality assurance. 

Caltrate

Calcium and vitamin D go hand-in-hand when it comes to supporting healthy bones, as vitamin D helps your body absorb calcium, which is vital for healthy bones. So, the fact that the two are combined into one tablet makes sense. Beyond bones, this combo may also help promote healthy nerves, hormones, and teeth.

Caltrate combines Vitamin D3 with 600 mg of calcium making this product a great choice for bone health. Calcium and Vitamin D work closely together so taking both in one supplement is a smart and effective choice. More than half of American women don’t get enough calcium, and this is a convenient way to make sure you do. If you are someone who consumes dairy 3-4 times per day and takes a multivitamin, you may be consuming too much calcium with this supplement. If taking multiple supplements, it is always important to add up the amounts of a single nutrient across products, take an inventory of your diet and check with a health professional to make sure you not consuming too much of one thing. 

Good to Know

"The upper tolerable level (UL) for calcium is 2,000-2,500 mg per day for adults 19-50 and over 50 years old respectively." —Syndey Greene, MS, RD

Kirkland Signature D3

Kirkland’s supplements are one of a handful of brands on the market that feature the seal of approval and quality from United States Pharmacopeia (USP). A USP Verified seal means that the product contains the ingredients listed on the label, in the declared strength and amounts. It also means that the product does not contain harmful levels of specified contaminants, ensures that products are made according to FDA and USP Good Manufacturing Practices—using sanitary processes and tests to make sure the product will break down and dissolve within a specified amount of time so the active ingredients can be released and absorbed by the body. Of note, this product does contain soy so if there is an allergy or sensitivity it is best to choose another product. 

Solgar

Solgar has been in the dietary supplement industry for over 70 years. As a trusted source for supplements that are free of harmful additives and common allergens, Solgar’s Vitamin D3 1000 IU is a fabulous option for those who do not have a Vitamin D deficiency but just want to supplement a wholesome diet and lifestyle that includes the outdoors.

A meta-analysis of clinical trials published in the British Journal of Medicine in 2009 found that taking 700-1000 IU per day of Vitamin D3 lowered the risk of falls among older individuals by 19 percent. 

Megafood

Megafood is one of the most trusted brands in the supplement industry because of its commitment to transparency. Consumers can head to Megafood’s website and observe product production live 24/7. In order to establish maximum efficacy of this supplement, Megafood combines the Vitamin D3 with extracts from whole foods such as broccoli leaf, brown rice, parsley, carrot, and beetroot to supply the necessary cofactors that support D3 absorption.  

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Article Sources

Verywell Fit uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial policy to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
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  4. Get Enough Calcium. Office of Disease Prevention and Health Promotion. Updated April 22, 2019.

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