SKU: 72642477984

Natural Factors Vitamin D3 1000 IU - 360 Softgels

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Description

Natural Factors Vitamin D3 1000 IU - 360 SoftgelsProvides the natural D3 form of vitamin D (cholecalciferol) Softgels deliver vitamin D3 in a base of organic flaxseed oil, which enhances absorption due to the fat soluble nature of vitamin D Available in tablets or softgels, each providing 1000 IU of vitamin D3 Available in various bottle sizes, including an economical 500 softgel size Natural Factors Vitamin D3 provides the natural form of vitamin D that is essential for the absorption of calcium

Provides the natural D3 form of vitamin D (cholecalciferol)

Softgels deliver vitamin D3 in a base of organic flaxseed oil, which enhances absorption due to the fat-soluble nature of vitamin D

Available in tablets or softgels, each providing 1000 IU of vitamin D3

Available in various bottle sizes, including an economical 500-softgel size 

Natural Factors Vitamin D3 provides the natural form of vitamin D that is essential for the absorption of calcium and phosphorus. These minerals are needed for successful bone mineralization and maintenance, as well as muscle function and proper nerve transmission.

Each tablet delivers a single 25 mcg (1000 IU) dose of vitamin D3 so that sufficient levels can be maintained conveniently when dietary intake and exposure to the sun’s ultraviolet rays is low. When combined with an adequate calcium intake, each daily tablet will help prevent the brittle, weak bones of osteoporosis and support a healthy immune system. Vitamin D3 is also an important factor in reducing the risk of cognitive dysfunction.

Vitamin D3 1000 IU is available in both 90 and 180 tablet bottles and is suitable for vegetarians. It contains no artificial colours, preservatives, sweeteners, or common allergens, making it a safe product that can be recommended for the health of both mother and child during pregnancy and lactation. This product contains no GMOs and is a key factor in the maintenance of good health. 

Vitamin D3 is an essential fat-soluble vitamin made naturally in the skin from exposure to the sun’s ultraviolet rays. The sunlight converts cholesterol within the skin into a form of vitamin D3 called calciol. This is converted by the liver into calcidiol (25-hydroxyvitamin D3), which is the inactive form of vitamin D3 circulated and stored in the body. The kidneys convert calcidiol into the active form of vitamin D3 called calcitriol (1,25-dihydroxy-vitamin D3).

Vitamin D3 increases calcium absorption in the gut to sustain steady blood calcium and phosphate concentrations that enable normal bone mineralization. As a hormone, it regulates cellular production of important proteins and peptides.

Vitamin D3 helps increase the number of receptors on immune system cells to help them fight pathogenic bacteria and viruses. It helps white blood cells recognize foreign invaders and may also influence the release of protective proteins when there is an infection.

Vitamin D3 may benefit cognition by protecting neurons and supporting their development. Its receptors are found on many different tissues in the body, including those in muscles, the prostate, and the heart, indicating that vitamin D3 has more effects than we currently know.

Ingredients

Medicinal ingredients

Each tablet contains:

Vitamin D3 (cholecalciferol)

25 mcg (1000 IU)

Non-medicinal ingredients

Microcrystalline cellulose, dibasic calcium phosphate dihydrate, vegetable grade magnesium stearate (lubricant).

Suggested Usage

Recommended Adult dose: 1 softgel daily or as directed by a health care practitioner.  Keep out of reach of children.

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SKU: 72642477984

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Brock1234
Omaha, US
★★★★★ 5
My New Favorite Socks
Size: 6-10, Color: Halo Gray/Assorted
These have quickly become mine and my mom's favorite socks. We wear them with tennis shoes, Hey Dudes, and more. The fabric is incredibly soft and comfortable, they do not budge/fall in my shoe, and are extremely well made. I have become so attached to these socks, that I no longer want any other brand.
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Reviewed in the United States on July 4, 2025
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Peety
Draper, US
★★★★★ 5
Fit is great!
Size: 6-10, Color: Halo Gray/Assorted
These socks fit perfectly and never slip!
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Reviewed in the United States on April 9, 2026
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LC
Omaha, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
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Lucy Mejia
Port Orchard, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
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Twins9
Lexington, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026

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