Vitamin D-1,000 - 90 Servings

$17.00
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Why We Chose This

This bioavailable D3 formula addresses a critical gap for active people who spend time indoors or live in low-sun climates, supporting bone density, muscle function, and immune resilience when you need it most. Thorne's clean formulation—free from unnecessary additives—delivers the potency your body can actually absorb and use.

Thorne Vitamin D-1,000 provides 1,000 IU of highly absorbable vitamin D3 per serving — a practical daily option for anyone with limited sun exposure. Formulated without lactose or common preservatives, this 90-serving supply supports bone integrity, muscle strength, and immune function as part of a consistent wellness routine.

Thorne’s D-1,000 contains 1,000 IU of high-quality vitamin D3. Although it is well known that direct sunlight is a natural source of vitamin D, many individuals, especially the elderly, don’t get enough vitamin D from sunlight or from their diet. Be sure you get the vitamin D your body needs with Thorne’s easily absorbed Vitamin D-1,000.

 

Benefits of Thorne’s Vitamin D-1,000: 

  • Supports healthy teeth and bones*
  • Promotes lean muscle mass and helps maintain muscle strength*
  • Enhances the absorption and retention of calcium*
  • Supports healthy brain function*
  • Promotes cardiovascular health and immune function*
  • Formulated with vitamin D3, a more potent and better absorbed form than vitamin D2
  • Thorne’s vitamin D contains no lactose and no preservatives like BHT, BHA, sodium benzoate, and sorbic acid

 

You could be at a higher risk of a vitamin D deficiency if you:

  • Rarely go outdoors, live in the northern latitudes, or have a darker skin tone
  • Have limited sun exposure due to your occupation, clothing choices, or engage in indoor athletics rather than outdoor sports
  • Regularly wear sunscreen with an SPF greater than 8
  • Are an older adult (the risk of a deficiency increases with age beginning at age 50)
  • Have a chronic health condition, such as a bowel disease or a surgical procedure (like gastric bypass) that decreases fat absorption
  • Are obese

 

The optimal amount of vitamin D for an individual depends on many factors and varies from person to person. Therefore, the requirement for vitamin D supplementation should be individualized. Either of Thorne’s D-1,000 or D-5,000 can be an ideal way to maintain an optimal level of vitamin D in healthy individuals.*

Suggested Use:

Take 1 capsule one to three times daily or as recommended by your health professional.

Warnings:

ALLERGY WARNING
This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

PREGNANCY
If pregnant, consult your health professional before using this product.

INTERACTIONS
There are no known adverse interactions or contraindications at publication date.

Who Thorne Vitamin D-1,000 Is Designed For

  • Limited sun exposure: Supports those who work indoors, train in gyms rather than outdoors, or live at northern latitudes where sunlight is less reliable year-round.
  • Bone and calcium health: Vitamin D3 supports the absorption and retention of calcium, making it a complement to a routine focused on maintaining healthy teeth and bones.
  • Muscle and cardiovascular wellness: Formulated to support lean muscle mass, muscle strength, and general cardiovascular health as part of an active lifestyle.
  • Older adults: Risk of vitamin D insufficiency increases with age; a daily D3 supplement can be a straightforward addition to an existing health regimen.

Frequently Asked Questions

What form of vitamin D does Thorne D-1,000 use, and why does it matter?

Thorne D-1,000 uses vitamin D3, which is considered more potent and better absorbed by the body than vitamin D2. D3 is also the form naturally produced by the skin in response to sunlight.

Is Thorne Vitamin D-1,000 free from common allergens and preservatives?

Yes — Thorne formulates this product without lactose and without preservatives such as BHT, BHA, sodium benzoate, or sorbic acid.

How long does one bottle of Thorne Vitamin D-1,000 last?

Each bottle contains 90 servings, providing a roughly three-month supply when taken once daily.

Returns + Exchanges

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Thorne's Return Policy