THORNE Vitamin D3 1000 IU
- Item Form: Capsule
- Dosage Form: Capsule
- Primary Supplement Type: Vitamin D3
- Diet Type: Gluten Free
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A clean, allergen-conscious D3 capsule at a moderate 1,000 IU dose from a brand known for third-party testing.
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ASIN: B0797H3VQSCategory: Vitamin D Supplements
Overview
Thorne keeps this D3 capsule to a single nutrient, dosed for bone, immune and cardiovascular support and free of dairy, fish, shellfish and soy. Ninety capsules cover about three months at one a day, aimed at anyone maintaining baseline D3 levels rather than correcting a severe deficiency.
Rather than bundling in K2 or calcium, Thorne isolates vitamin D3 here, so the dose is easy to track alongside other supplements. The capsule is unflavored and free of dairy, fish, shellfish and soy, a broader allergen list than most D3 products state. Ninety servings works out to a standard three-month bottle.
- 1,000 IU vitamin D3 per capsule
- 90 capsules, about a 3-month supply
- Free of dairy, fish, shellfish, soy and gluten
- Unflavored capsule
Who it's for
Works for people who want a plain D3 capsule without added nutrients and who need it free of common allergens. Not the choice for anyone specifically looking for a D3-plus-K2 combination formula.
Pros and cons
- Free of dairy, fish, shellfish and soy
- Single-nutrient formula, easy to dose alongside others
- 90-day supply per bottle
- 1,000 IU is a moderate, not high-potency dose
- No K2 or calcium included in this formula
Performance notes
Each capsule supplies 1,000 IU of vitamin D3, which the label ties to bone, joint, cardiovascular and immune function support. At one capsule daily, the 90-count bottle lasts about three months.
Specifications
| Brand | THORNE |
|---|---|
| Dimensions & fit | |
| Item Dimensions | 1.7 × 1.7 × 3 inches |
| Capacity & performance | |
| Age Range Description | Adult |
| Included components | |
| Unit Count | 90 |
| Other details | |
| Item Form | Capsule |
| Dosage Form | Capsule |
| Primary Supplement Type | Vitamin D3 |
| Diet Type | Gluten Free |
| Flavor | Unflavored |
| Product Benefits | Supports Bone & Joint Heart & Vessels Immune* |
| Number Of Items | 1 |
| Specific Uses For Product | Bone Health & Immune Support |
| Allergen Information | Dairy Free, Fish Free, Shellfish Free, Soy Free |
Frequently asked questions
What dose of vitamin D3 is in Thorne's D3 supplement (D128)?
Each capsule provides 1,000 IU of vitamin D3.
Is this product free of common allergens?
Yes, it is labeled free of dairy, fish, shellfish, soy and gluten.
How many capsules come in a bottle?
The bottle contains 90 capsules, a roughly three-month supply at one per day.