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Vitamin D3 1,000 IU (D-1,000, standalone, no K2) — front

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Foundational

Vitamin D3 1,000 IU (D-1,000, standalone, no K2)

Thorne · 1,000-2,000 IU/day (1-2 capsules); default 1,000 IU if also taking a multivitamin that contains vitamin D

MSRP $17
1 capsule · PM

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✛ Why it's used

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.

This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms.

Suggested use

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

Supplement facts

Serving size 1 CapsuleServings per container 90
Amount per serving
Vitamin D (as Vitamin D3) (1,000 IU)25 mcg

Other ingredients: Hypromellose Capsule, Leucine, Microcrystalline Cellulose, Silicon Dioxide, Vitamin E (d-Alpha-Tocopheryl)

Dietary considerations · Gluten free · Dairy free · Soy free · Milk free

Listed under Vitamins & Minerals > Single Vitamins > Vitamin D

⚠ Key cautions

Cautions: count total vitamin D from all products (e.g. the catalog's Multivitamin 2,000 IU and Vitamin D3 + K2 4,000 IU) so the total stays at or under 4,000 IU/day. Avoid or supervise in hypercalcemia, sarcoidosis/granulomatous disease, primary hyperparathyroidism, and a history of calcium kidney stones (vitamin D raises calcium absorption). Additive hypercalcemia risk with thiazide diuretics and high-dose calcium. Digoxin toxicity risk if hypercalcemia develops. Absorption is reduced by orlistat, cholestyramine and mineral oil; anticonvulsants (phenytoin, carbamazepine) and glucocorticoids increase vitamin D needs. No vitamin K, so it is SAFE for warfarin users (the key reason this row exists). Label: if pregnant, consult a health professional. Priority: Low (within UL; review in calcium disorders/kidney stones).