Vitamin D3

As Potent and Pure as Sunshine Itself

8 Answered Questions
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Premium Vitamin D3 in Sunflower Oil for Maximum Absorption

2,500 IUs of D3 for Healthy Bones and Good Sleep

If there is one Vitamin to rule them all–look no further than Vitamin D. Receptors for this “sunshine vitamin” are found virtually everywhere in the body.1 Vitamin D plays a role in maintaining healthy immunity, bone health and positive attitudes.2-5 If you live in the US or Canada, and spend ample time indoors, it is possible you aren’t getting enough Vitamin D from its primary source: sun exposure. Research has suggested part of the US population is not getting optimal levels.6,7

During winter months far from the equator, UVB radiation from the sun is more limited. UVB radiation is required to stimulate adequate production of Vitamin D in the skin. Latitudes that include New York City and Boston may have limited exposure from November to March.8 During summer months, it is wise to use sunscreen and stay in the shade, but in doing so you are lowering the skin’s sun exposure to sun. Also, since vitamin D is not as plentiful in food, supplementing is an easy way to boost your levels.9

Nested Naturals Vitamin D3 is a potent, cruelty-free and easy way to supplement your levels of this critical vitamin. Each capsule gives you 2,500 IUs of premium quality, highly absorbable Vitamin D3 sourced from purified lanolin. We designed our gel-caps to be small and easy to swallow. As importantly, there’s no gnarly aftertaste that is common with other Vitamin D3 supplements.

Vitamin D3 is Pure Sunshine in a Bottle

Maintain Healthy Bones and Teeth

Vitamin D helps the body absorb and use minerals such as calcium and phosphorus which are necessary for strong bones and healthy teeth.3,4,10 Adequate calcium and vitamin D as part of a healthful diet, along with physical activity, may reduce the risk of osteoporosis in later life.11

Positive Moods

This "sunshine vitamin" supports positive attitudes and healthy moods, so you can be your best self all year round.5

Sleep Quality

Vitamin D supports healthy sleep habits by promoting normal sleep regulation, quality and duration.12

Support Wellness

Vitamin D helps to maintain blood sugar levels that are already in normal range to support overall health and wellness.13

The Active Ingredients Inside Vitamin D3

The Ingredients Inside Nested Naturals Vitamin D3

Supplement Facts
Serving Size: 1 Mini Softgel Servings Per Container: 180
Amount per Serving % DV
Vitamin D3
(as cholecalciferol)
in Sunflower Oil
2,500 IU 313%

* Percent Daily Values (DV) are based on a 2000 calorie diet

Other Ingredients: Organic Extra Virgin Olive Oil, Vegetable Gel Shell (non-GMO modified cornstarch, carrageenan, glycerin [vegetable], sorbitol, purified water)

This product contains no wheat, gluten, GMO, soy protien, dairy, egg, fish, nuts, yeast, barley, sugar, or preservatives. Third-party tested and manufactured in a NSF certified cGMP facility in the USA using worldwide ingredients.

Store in a cool, dry place. Avoid excessive heat. Do not use if safety seal is broken.

Highly Concentrated and Easy to Take

One small, easy-to-swallow softgel of Nested Naturals Vitamin D3 gives you 2,500 IUs of premium D3.

No Fishy Aftertaste

Check out the reviews and you’ll see that one of things people appreciate most about Nested Naturals Vitamin D3 is that there’s no aftertaste that’s common with other Vitamin D3 supplements.


No animals are killed to produce this supplement. There are two main sources of Vitamin D3: fish oil and purified lanolin harvested from sheep’s wool. We opted to make Nested Naturals Vitamin D3 from purified lanolin, which we believe is the more animal-friendly choice. We’ve also made a conscious choice to make our soft gels from ingredients derived only from vegetables. There’s no gelatin which is produced from animal bones and marrow.

Your Questions, Our Answers

See the most popular questions asked about Vitamin D3.

What’s the difference between Vitamin D3 and D2?

Vitamin D supplements come in two types: D3 or D2. Vitamin D3 (a.k.a. cholecalciferol) is extracted primarily from either purified lanolin harvested from sheep’s wool or fish oil. Vitamin D2 (a.k.a. ergocalciferol) is synthesized from plant materials.

Studies show 14 that D3 is more effective than D2 at sustaining levels of Vitamin D in the body. Vitamin D3 is the form that our skin makes naturally when exposed to the sun.

Should I take Nested Naturals Vitamin D3 with food or on an empty stomach?

Vitamin D3 a fat-soluble; it needs fat to be absorbed. That’s why we combine it with sunflower oil in the gel-cap. You can take Nested Naturals Vitamin D3 on an empty stomach, but it wouldn’t hurt to take it with a meal.

Where is Nested Naturals Vitamin D3 sourced?

Our Vitamin D3 is made from purified lanolin harvested from sheep’s wool--no animals are killed during this process. We are relentless about sourcing the best, most ethically produced ingredients available.

Is Nested Naturals Vitamin D3 vegan?

Although Nested Naturals Vitamin D3 is vegetarian, it isn’t vegan. There are two main sources of Vitamin D3: fish oil and purified lanolin harvested from sheep’s wool. Nested Naturals Vitamin D3 is made from purified lanolin, which we believe is the more animal-friendly choice. No animals are killed to produce this supplement. We’ve added a sunflower oil carrier to help your body absorb the Vitamin D3 more efficiently.

What is corn starch doing in Nested Naturals Vitamin D3?

This natural starch product derived from the corn kernel is used in tiny amounts to produce our softgel. It is a fine white to yellow powder commonly used in the manufacturing of nutraceuticals and pharmaceuticals as a disintegrant and binder. Disintegrants allow softgels to break down into smaller fragments so that the beneficial natural ingredients can be released for absorption by the body.

The amount of corn starch used in the softgel are insignificant and should not have an affect on your health.

What is carrageenan and what is it doing in Nested Naturals Vitamin D3?

We include tiny amounts of carrageenan in our softgel. Carrageenan is derived from algae that we use to help thicken the compound and create a homogenous solution while in our high quality nutraceutical mixer. Not only that, but carrageenan is one of the best vegan options as a substitute for animal-based gelatin, allowing us to make our capsule out of purely vegan ingredients.

There are various forms of carrageenan, and it has over 50 years of safe use. In fact, It was originally used in Ireland around 1810 to cure respiratory ailments and since has been used as a food additive. We use a food grade carrageenan that has been carefully reviewed and found to be safe by the European Commission and the World Health Organization.

Should I be taking Vitamin K with my Vitamin D3?

One of the major roles of Vitamin D3 is to help the body extract calcium from the food we eat. High doses of Vitamin D3 mean the body absorbs lots of calcium which can be great for bone health. However, the bones benefit from Vitamin K2 to make use of the available calcium.15 Our Vitamin D3 includes 2,500 IUs which we’ve formulated it to pair with our Vitamin K2 made from non-GMO chickpeas.

Customer Reviews

Discover what real customers say about Vitamin D3.

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Kimberly D Verified Buyer 16/10/18
Anonymous Verified Buyer 09/07/18
Anonymous Verified Buyer 04/01/18
Best $ per IU ratio I've found for Vitamin D3. Customer service was fantastic. Shoutout to Nel who answered all my questions. Appreciate the vegetarian, bovine-free capsule.
Carol B Verified Buyer 18/12/17
I feel very comfortable taking this high quality Vitamin D3. I trust your brand because you care about safety and quality.
Karla F Verified Buyer 13/04/17
Best Vit D3 on the market that I've tried!!
Althea B Verified Buyer 04/11/16
Karon O Verified Buyer 06/10/16
First of all I really like the small size of the pill, and no after taste or burp ups! I have noticed a definite up-lift to my overall mood since I started taking vitamin D. My husband recently retired so I have twice as much husband now and not as much patience ! Suffice it to say this definitely helps !
Sally R Verified Buyer 12/08/16
Sally R Verified Buyer 12/08/16
Eleanor S Verified Buyer 04/08/16
Read reviews from our lovely customers


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