THORNE - Vitamin D-5,000 - Vitamin D3 Supplement - Supports Healthy Bones, Teeth & Muscles, Plus Cardiovascular & Immune Function* - NSF Certified for Sport - Gluten, Dairy & Soy-Free - 60 Capsules Review
Our verdict
Thorne's Vitamin D-5,000 stands out for its NSF Certified for Sport label, a detail aimed at athletes who want a batch-tested supplement, and it carries a strong 4.8 rating across more than 9,000 reviews.
Check price on AmazonBest for
Athletes or competitive sport participants who want a third-party sport-tested D3 capsule, and buyers already comfortable with a higher 5,000 IU dose.
Skip if
You want a low-dose everyday option, prefer a flavored or gummy format, or already follow a different D3 routine set by your own doctor.
- Form Capsule
- Count 60 Count
- Flavor Unflavored
- Type Vitamin-D
- Diet Gluten Free
- Benefits Supports Bone & Joint Heart & Vessels Immune Sports Performance*
- Priced 38% above the category median ($14.49 across 136 tracked models)
Pros
- NSF Certified for Sport, so the batch is independently tested for banned substances
- Simple capsule free of gluten, dairy, fish, shellfish, and soy
- Strong demand signal, with 20,000 bought in the past month
- Backed by a 4.8 rating across more than 9,000 reviews
Cons
- 5,000 IU is a higher potency than everyday multivitamin-style D3 products
- 60 capsules is a shorter supply than some bulkier bottles on the market
- No flavor or chewable option for people who dislike swallowing capsules
Our scorecard
-
Owner rating4.8/5
4.8 average across 9,300 owner ratings
-
Popularity3.9/5
9,300 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
Thorne packages this as a 60-count capsule supplement built around a 5,000 IU dose of vitamin D3. The capsules are unflavored and labeled gluten free, dairy free, fish free, shellfish free, and soy free, which keeps the ingredient list simple for people managing common allergens.
What sets it apart from most D3 capsules is the NSF Certified for Sport label, meaning the batch has been independently tested for substances banned in athletic competition. That is a manufacturing and testing distinction, not a health claim, but it is why some athletes and coaches specifically look for this kind of certification.
The label markets the product toward bone and joint support, heart and vessel health, immune function, and sports performance. As with any supplement, it is worth a quick conversation with a healthcare professional before adding a higher-potency product like this to your routine.
Specifications
| Form | Capsule |
|---|---|
| Count | 60 Count |
| Flavor | Unflavored |
| Type | Vitamin-D |
| Diet | Gluten Free |
| Benefits | Supports Bone & Joint Heart & Vessels Immune Sports Performance* |
| Allergens | Dairy Free, Fish Free, Shellfish Free, Soy Free |
Performance notes
This is a capsule-form Vitamin D3 supplement sold in a 60-count bottle, unflavored, and labeled gluten free. The stated benefits on the label reference bone and joint support, heart and vessel health, immune function, and sports performance, which lines up with the NSF Certified for Sport positioning.
What buyers say
With a 4.8 average rating over roughly 9,300 reviews and 20,000 units bought in the past month, feedback is strongly positive and purchase volume is high relative to the review count, suggesting a lot of repeat buyers.
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Frequently asked questions
What does NSF Certified for Sport mean for this product?
It means the batch is submitted for independent testing to confirm it is free of substances banned in athletic competition. It is a testing and manufacturing distinction, not a claim about health outcomes, which is why some competitive athletes look for it specifically.
Is 5,000 IU a lot of vitamin D?
It is a higher potency than many everyday multivitamins offer. Because the right amount can depend on your individual situation, it is worth checking with a doctor or pharmacist before starting a higher-dose product like this one.
Does it contain common allergens?
Per the label, it is free of dairy, fish, shellfish, and soy, and is also labeled gluten free.