Recommended Vitamin D Supplements To Boost Your Intake

LAST UPDATED: August 28, 2018 by Sasha deBeausset

Your body makes Vitamin D, “The Sunshine Vitamin” when your bare skin is exposed to sunlight. Once your body processes Vitamin D, it uses the vitamin to strengthen bones and teeth. Vitamin D helps manage calcium in your blood, stomach, and bones and ensures proper communication between cells.

However, not everyone is able to get their recommended dose from the sun or the foods they eat. Finding the best Vitamin D supplement will aid you in getting your target amount. In this article, we’ll recommend a few of our favorites.

5 Of The Best Vitamin D Supplements In The UK

Vitafusion Vitamin D3 Gummy Vitamins Nu U Nutrition Vitamin D3 365 Softgels NatureWise Vitamin D3 Thorne Research D-1000 Max Absorption Vitamin D3

Vitafusion Vitamin D3 Gummy Vitamins, Assorted Flavors, 150 Count

Vitamin D3 Gummy Vitamins offer a fruit-flavored solution, for people who dread swallowing vitamin pills. One of a line of gummy vitamins for adults from Vitafusion, D3 Gummy Vitamins replace the chalky consistency of standard Vitamin D3 tablets with chewable gummies in peach, blackberry, and other natural flavors.

Take two gummy vitamins per day, and chew thoroughly before swallowing. You need to keep Vitafusion vitamins out of the reach of children, as they may mistake them for candy. Two gummies supply 2000 internal units (IUs) of Vitamin D3, the recommended daily dose according to medical professionals.

These gummy vitamins may not be a good value for some people because you need to take two gummies instead of one to get the daily value of D3. One bottle provides a 75-day supply of vitamins.


  • Has natural fruit taste
  • No wheat, soy, gluten, milk, eggs or peanuts
  • Chewable alternative to chalky vitamins


  • Contains animal-based gelatin and sugar
  • Individual flavours may cause allergic reactions in some users
  • Has a rubbery texture

Nu U Nutrition Vitamin D3 365 Softgels

Nu U Nutrition Vitamin D-3 contains soybean oil, gelatin, glycerin, water, corn oil and Vitamin D3. These inexpensive, easy-to-swallow soft gels offer a convenient choice for non-vegans without allergies.

Each pill contains 1000 IUs, enough to boost the average person’s D3 level. The relatively small dose in each pill gives you control over how much D3 you take each day. Taking too much D3 can cause health issues for people who don’t need the extra amount.

The D3 in Nu U Nutrition 1000 IU vitamins give people in rainy or cold climates, and individuals who can’t go outside regularly the D3 others get from the sunshine.

Online reviews for this best-selling supplement are mostly positive, with only a few people citing problems with packaging or stomach problems. Vitamin D 365 soft gels are made in the UK according to GMP standards.


  • Easy to swallow softgels
  • GMO-free, no artificial ingredients
  • Provides 1000 IUs of Vitamins in one pill


  • Contains gelatin
  • Causes nausea in some users
  • May be mislabeled if you buy online

NatureWise Vitamin D3

NatureWise Vitamin D3 claims to offer the same type of D3 produced by your body after sun exposure, without the danger of UV rays. The fat-soluble formula has no artificial or GMO ingredients.

The Vitamin D3 (cholecalciferol) is derived from Lanolin. Vegans may want to try a Vitamin D2 brand, as the soft gel capsules consist of bovine-sourced gelatin, plus water and glycerin.

Manufactured to GMP standards and tested by a third-party for purity, NatureWise D3 has no yeast, wheat, gluten, dairy, corn, soy, eggs, sugar, tree nuts, peanuts, fish, shellfish, or hydrogenated oils.
Reviewers note that NatureWise D3 raises their mood and Vitamin D level and that the small capsules are easy to take, especially with pills for other conditions.


  • Contains 1000 IUs per tablet for dosage control
  • Small and easy to swallow
  • Made with organic olive oil for healthier teeth and bones


  • Some users may need higher single pill dosage
  • Cheaper brands may be just as good
  • Some users experience stomach aches and cramps

Thorne Research D-1000

The D3 in Thorne Research D-1000 is sourced from lanolin from sheep’s wool and made with other ingredients from the purest sources. Thorne Research provides high-quality nutritional supplements often recommended by doctors. The cost of a bottle of Thorne Research D3 is twice as much as generic store brands, but the quality makes the higher price worth it for many users.

One 1,000 IU capsule has Vitamin D3, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide, Microcrystalline Cellulose, and Vitamin E (d-Alpha Tocopheryl). This D3 supplement contains no GMO products, filler or preservatives.

Reviewers report that Thorne Research Vitamin D-1000 improves conditions such as chronic muscle pain, low thyroid, diabetes and Vitamin D deficiency.


  • Contains no sodium benzoate, BHA, BHT, lactose or sorbic acid
  • Available in 1,000, 5,000, 10,00 and 25,000 IUs
  • 1000 IU pills give you control over the dosage amount


  • Some users saw no change in their Vitamin D level
  • Individual online suppliers may offer cut-rate product
  • Difficult for some users to absorb

Max Absorption Vitamin D3

The sublingual formula in Max Absorption Vitamin D3 and K2 gets the vitamins into your system faster for better bones and more energy. Every liquid drop contains 2,000 IU of Vitamin D3 per dose and includes Vitamin K2 – MK-7.Vitamin K2 helps improve bones, blood clotting, and heart health. Getting enough K2 from foods can be difficult. Only a few foods, like cod liver oil and natto, contain Vitamin K2.

These D3/K2 sublingual drops contain 2000 IU of Vitamin D3, (500% the of daily recommendation) and 15 mcg of Vitamin K2. The product contains no soy, gluten, sugar or fillers.

Put one drop a day under your tongue. The liquid will absorb into your bloodstream directly, unlike pills. Made in the USA, these sublingual drops come in a dark bottle to protect the contents from light. (Too much light detracts from the vitamin’s potency.)


  • Vitamin K2 enhances Vitamin D3 benefits
  • Liquid drops have higher absorption rates
  • No worries about hard to swallow pills


  • May not be vegan-friendly
  • Sublingual formula too potent
  • Misinformation on packaging

The Value of Taking Vitamin D

Direct exposure to sunlight provides enough Vitamin D for the average person’s needs. Unfortunately, most people take insufficient advantage of the sun’s rays. Research cited in the Archives of Internal Medicine shows that three-quarters of individuals in the U.S. don’t get enough Vitamin D.

It takes as little as ten minutes in direct sunlight for your body to manufacture 10,000 internal units (IUs) of Vitamin D, well over the 600 IUs daily recommendation for adults up to 70 years old.

Even young, athletic people suffer from Vitamin D deprivation. A study showed that more than half of U.S. college athletes had low levels of Vitamin D. Athletes with higher levels of the vitamin had a lower risk of injury and had better muscle function.

The chances of getting enough sunshine/skin contact dwindle if you live in an area that’s cloudy and rainy year-round.

You can get a limited amount of Vitamin D3 from salmon and other fatty fish, beef liver, egg yolks, fortified milk and cereals, and cheese. Eating foods containing Vitamin D3 can only do so much; you still need to get out in the sun to get an adequate amount of the vitamin.

Getting out in the sun offers the best way to get more Vitamin D in your life, but Vitamin D3 supplements provide another source of the “Sunshine” vitamin.

How to Choose the Right Supplement for You

Vitamin D supplements come in two forms – Vitamin D2 and Vitamin D3, with Vitamin D3 being the most common. Vitamin D3 is the D vitamin naturally produced by the skin. Vegans may want the harder to find D2, which may be made with mushrooms or yeast.

Popular Vitamin D3 supplements come in soft gel capsules, white, chalky vitamin form or as fast-absorbing sublingual drops. Some supplements contain additional vitamins and nutrients, such as Vitamin K2. Choose soft gels or sublingual drops if you have trouble swallowing tablets.

The number of internal units (IUs) in Vitamin D supplements range from 1000 to 5000. Some brands offer 10,000 and 25,000 IU supplements. The higher IU supplements (over 5000) should only be taken on the advice of a doctor.

Look for a third-party certification to ensure that the product offers what it says it does. A GMP (Good Manufacturing Practice) seal shows that the product has been developed and manufactured in a safe, inspected facility.

What are the Benefits of Vitamin D?

Vitamin D assists your body in the following functions:

  • Ensures healthy bones and teeth
  • Regulates insulin levels and helps manage diabetes
  • Supports the brain, nervous and immune system
  • Stabilizes lung and cardiovascular health
  • Can prevent cancer

People with mood disorders, muscle weakness, osteoporosis, immune function problems and other severe health issues can take up to 100,000 IUs of Vitamin D a day, as directed by their doctor.

Do I Need a Vitamin D Supplement?

You probably need an oral D supplement if you have any of the following issues:

  • Experience limited sun exposure due to illness, occupation, lifestyle or clothing choices
  • Live in the northern latitudes
  • Have difficulty absorbing fats due to a gastric bypass or other surgery or illness
  • Have a dark skin tone, which acts as a built-in sunscreen
  • Wear sunscreen with an SPF of 8 or above
  • Are over 50 years old
  • Are obese
  • Follow a strict vegan diet

You must get the vitamin from supplements and food if you don’t get enough Vitamin D from sunlight. Without adequate Vitamin D, you may develop depression, cognitive impairment (in seniors), and increase your risk of cancer, hypertension, and cardiovascular disease.

What Attributes Differentiate One Brand of Vitamin D from Others?

Vitamin D2 comes from plants. Vitamin D3 is produced when human skin is exposed to sunlight. Foods may be fortified with either D2 or D3, both supplements Vitamin D2 and D3 are available in supplement form.

The most common form of Vitamin D deficiency occurs due to lack of exposure to sunlight. Vitamin D3 supplements, therefore, tend to be more popular.

What’s the Best Way to Use Vitamin D?

According to the Vitamin D Council, as long as you take a Vitamin D supplement (or get out in the sunshine), you’ll get enough of this vital nutrient.

Studies on the absorption rate of Vitamin D supplements show that taking the supplement with food or on an empty stomach offer the same result. If you maintain 50 -60 ng/ml (nanograms per milliliter) of Vitamin D in your blood, the method you use makes no difference.

Prerequisites and Warnings Regarding Use of Vitamin D

Vitamin D may be unsafe in large doses, especially during pregnancy and breastfeeding. Consult your doctor if you want to take a high dosage of a Vitamin D supplement.

Vitamin D may cause an increase in calcium levels and hardening or the arteries in people with kidney disease. Monitor your calcium level if you have kidney problems and take Vitamin D.

Learn more about the signs of Vitamin D deficiency from the video “What’s a Vitamin D Deficiency?” from the University of California Television YouTube Channel

Conclusion: Which Vitamin D Supplements Do You Recommend I Buy?

Based on our research, Thorne Research – Vitamin D-1000 – Vitamin D3 Supplement – 1,000 IU – 90 Capsules supplies the best value for your money.

This Vitamin D3 supplement provides just enough of the Vitamin to improve the D3 level in people with mild to moderate deficiencies. Vitamin D levels in people with a major deficiency, depression, diabetes, Multiple Sclerosis and many other conditions can take two or more pills a day as recommended by their doctor.

Made without preservatives, it comes in a small, easy-to-swallow pill – similar to both Zinc and Iron. Free of lactose, palmitic acid, magnesium, calcium, or vegetable stearates, Thorne Research D3 provides enough of the vitamin for most people without fear of allergic reaction.

The manufacturer, Thorne Research, has gained the trust of medical professionals, who recommend it for their patients. Thorne Vitamin D 1000 also has the distinction of being certified for use by athletes. The company also provides the same formula in other IU amounts, (5,000, 10,000, 25,000).

Although Thorne Research Vitamin D3 must be purchased online or at a vitamin store, the product offers high-quality D3 and receives praise from doctors and customers. Even though it costs more than chemist brands, it is still affordable.

Recommended Vitamins