No, the vitamin D does come from lanolin oils which is from lamb's wool (aka, sheep).

Has this product been tested by any 3rd party labs for contaminants? I don't see it on labdoor or consumerlabs.com

In case it’s helpful, here is a bit of information I can offer. My naturopath cited several studies/research showing that Thorne products contained exactly what the product label stated. Many other brands that were included in the study contained far less of the nutrients listed. I wish I’d written down the research and testing sources. As I recall they were university-supported nutrition research studies. He has been very clear about his faith in Thorne and Vital Nutrients brands, stating one can even take lower dosages to save cost, because the product will contain exactly what is stated on the bottle. In other words, a product that is 200mg within a Thorne product may be comparable to another brand that claims to contain 300 or 500mg. He also feels strongly that Thorne products offer higher bioavailability. I’m not a scientist - but in case it helps, I wanted to offer his opinion. He’s a naturopath with decades of experience and patients remain with him for life. He hasn’t had room for new patients for ten years. He’s just that good! So, I trust his evidence and opinion. But again- I’m not a scientist :-)

Is this product vegetarian? Thorne Vitamin D 5,000?

Thorne Research - Vitamin D-5000 - Vitamin D3 Supplement is considered vegetarian. However, it is not vegan since the Vitamin D is sourced from lanolin oils which is from lamb's wool.

Do thorne products contain any gelatin or beef derivatives?

This product is derived from lanolin (from sheep's wool), so it is not labeled as vegan. However, it does not contain any gelatin or beef derivatives.

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☀️ Elevate your health game with the pro-grade Vitamin D boost you can’t afford to miss!

POWER PACKED 5 000 IU DOSE - Maximize your daily Vitamin D3 intake with a clinically potent 5,000 IU per capsule for superior bone, muscle, and immune support.
BACKED BY SCIENCE CHAMPIONS - Developed in collaboration with Mayo Clinic and chosen by 100+ pro teams, this is wellness you can trust.
CLEAN ALLERGEN FREE FORMULA - Dairy-free, soy-free, gluten-free, and free from common allergens—perfect for the health-conscious professional.
ELITE NSF SPORT CERTIFICATION - Trusted by pro athletes and 11 U.S. Olympic Teams, this supplement meets rigorous NSF standards for purity and performance.
OPTIMIZED ABSORPTION WITH VITAMIN D 3 - Superior bioavailability compared to D2 ensures your body gets the most out of every capsule.

THORNE Vitamin D-5000 delivers a potent 5,000 IU dose of highly absorbable Vitamin D3 per capsule, supporting healthy bones, teeth, muscles, cardiovascular, and immune function. NSF Certified for Sport and free from common allergens like dairy and soy, it’s trusted by professional athletes and developed in partnership with Mayo Clinic, making it a premium choice for health-conscious adults.

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Additives	Vitamin D3
Allergen Information	Shellfish Free
Weight	0.2 Pounds
Units	60 count
Serving Recommendation	1 capsule per day
Brand	THORNE
Format	Capsule
Age Range Description	Adult

THORNEVitamin D-5000 - Vitamin D3 Supplement - 5,000 IU - Support Healthy Bones, Teeth, Muscles, Cardiovascular, and Immune Function - NSF Certified for Sport - Dairy-Free, Soy-Free - 60 Capsules

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