Thorne is a supplement company that makes vitamins, minerals, and other nutritional products used for a wide range of health goals, from everyday wellness and gut health to sports performance and healthy aging. Unlike many supplement brands sold in grocery stores, Thorne positions itself as a clinical-grade option, manufacturing its own products and selling them both directly to consumers and through healthcare practitioners.
What Thorne Products Cover
Thorne’s product line spans more than two dozen health categories. The most popular ones address sports performance, gut health, immune support, sleep, stress, energy, cognition and focus, bone and joint health, and heart health. They also offer products tailored to specific groups: women’s health, men’s health, children’s health, and healthy aging formulas designed around longevity.
Within those categories, you’ll find familiar supplement types like multivitamins, fish oil, probiotics, protein powders, and amino acids, alongside more targeted formulations. Their berberine product, for example, is used for metabolic support. Berberine is a plant compound that helps regulate blood sugar levels, and research supports its use for people managing Type 2 diabetes or metabolic syndrome. A typical dose is 500 milligrams twice a day before meals. Their nicotinamide riboside product targets cellular aging by boosting levels of NAD+, a molecule your body uses to convert food into energy, repair damaged DNA, and regulate your internal clock. NAD+ levels decline with age, which is why supplements that restore them are marketed for longevity.
Why Athletes and Sports Organizations Use Thorne
Thorne has become a go-to brand in professional sports partly because many of its products carry NSF Certified for Sport certification. This matters for athletes because the certification process tests each product for over 290 banned substances, including anabolic agents, stimulants, diuretics, masking agents, and hormones. Products also undergo label verification to confirm that what’s listed on the label is actually what’s inside.
Several major organizations have partnered with Thorne, including the UFC, NASCAR, Team Penske, and USA Triathlon. The NSF certification process goes beyond just testing the finished product. It includes annual audits of the manufacturing facility, reviews of raw material sourcing, quality control procedures, and supplier inspections. For competitive athletes who face drug testing, this level of third-party verification reduces the risk of accidentally consuming a contaminated supplement.
At-Home Health Tests
Beyond supplements, Thorne sells at-home health tests that measure specific biomarkers through blood or saliva samples. These tests are designed to give you data about what’s happening in your body so you can choose supplements or lifestyle changes accordingly. The available tests cover:
- Gut health: measures intestinal permeability, bacterial balance (good and bad bacteria), inflammation markers, short-chain fatty acids, and immune readiness
- Thyroid: checks TSH, free T3, free T4, and thyroid antibodies
- Sleep: tracks cortisol and melatonin levels at four points throughout the day
- Stress: measures cortisol patterns and DHEA
- Fertility: covers 14 markers including estrogen, progesterone, testosterone, thyroid hormones, and cortisol
- Weight management: tests insulin, hemoglobin A1c (a measure of blood sugar over time), vitamin D, thyroid function, and several hormones
- Biological age: estimates your body’s functional age based on blood, lipid, liver, kidney, and metabolic markers
- Vitamin D: measures both D2 and D3 forms
The idea is to pair test results with targeted supplementation rather than guessing what your body needs.
Manufacturing and Quality Standards
Thorne manufactures its own products in a vertically integrated facility, meaning it controls the process from raw ingredients through finished capsules. The company states it adheres to current Good Manufacturing Practice (cGMP) requirements, which are federal standards for how supplements must be produced, packaged, and stored. Its facility has received some of the highest ratings available in the supplement industry for these standards.
In practical terms, this means Thorne tests raw materials before they enter production, verifies that finished products match their labels, and screens for contaminants like heavy metals, pesticides, and microbial contamination. The company also excludes certain common additives from its formulas, though the specific list varies by product.
Research and Clinical Partnerships
Thorne is the only supplement manufacturer that collaborates directly with Mayo Clinic on health and wellness research. One notable example: a double-blinded, placebo-controlled trial studied the effects of a Thorne brain-health supplement on 30 junior ice hockey players over the course of a season. Players taking the supplement showed significant improvements in selective attention, focus, and visual processing speed compared to those on placebo. Players with a history of concussions saw additional benefits, including lower levels of neurofilament light, a protein that rises when nerve cells are damaged.
This kind of clinical trial is uncommon in the supplement industry, where most brands rely on studies of individual ingredients rather than testing their own finished products. It doesn’t mean every Thorne product has been through a clinical trial, but the company invests more in original research than most competitors in the space.
Who Thorne Is Designed For
Thorne products tend to cost more than mass-market supplements, and that price reflects the testing, manufacturing control, and third-party certification built into the brand. The typical Thorne customer falls into a few camps: people referred by a healthcare practitioner who recommends specific formulations, athletes who need banned-substance-tested products, and health-conscious consumers willing to pay more for tighter quality control.
You can buy Thorne products directly from their website, through Amazon, or through a healthcare provider’s recommendation portal. Some products are available as subscriptions for ongoing use. If you’re new to the brand and unsure where to start, their at-home tests are designed as an entry point to identify which supplements, if any, would be relevant to your specific health profile.