We may not have personally tested every product. This review is based on official product information, product specifications and comparative research. It is not medical advice.
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Thorne Basic Nutrients 2/Day, 60 Capsules
A broad two-capsule multivitamin and mineral formula with vitamin D3, vitamins K1 and K2, active B-vitamin forms, zinc, selenium and chromium.
Thorne Magnesium Bisglycinate, 60 Servings
A monk-fruit-sweetened powder providing 200 mg elemental magnesium per scoop and carrying NSF Certified for Sport status.
Thorne Creatine, 90 Servings
A simple NSF Certified for Sport powder containing five grams of micronized creatine monohydrate per scoop.
Thorne Daily Greens Plus, 30 Servings
A fully disclosed 28-ingredient greens, mushroom, adaptogen and antioxidant powder with approximately 35 mg caffeine from matcha.
What is Thorne?
Thorne is a U.S. supplement company known for professional-style vitamin, mineral, sports-performance and wellness formulas. Its catalog includes multivitamins, magnesium, creatine, omega-3 products, probiotics, botanical extracts, greens powders, testing services and specialized supplement stacks.
Most Thorne supplements are manufactured at the company’s facility in Summerville, South Carolina, using U.S. and imported ingredients. Thorne says every supplement it manufactures undergoes four rounds of testing covering raw materials, in-process production, finished products and stability through the expiration date.
A substantial portion of the sports line carries NSF Certified for Sport certification. This certification includes label verification and testing for substances prohibited by major athletic organizations. It is particularly valuable for competitive athletes, although it does not prove that a supplement is necessary or effective for every user.
Our quick verdict
Thorne earns a 4.8/5 editorial rating. The company’s strongest qualities are manufacturing control, detailed labels, broad product selection and an unusually large NSF Certified for Sport range.
Basic Nutrients 2/Day is the best overall starting product for adults who have a reason to use a broad multivitamin. Magnesium Bisglycinate is a simple single-mineral powder, Creatine is the strongest evidence-based sports product, and Daily Greens Plus is the most ambitious but also the most complicated and expensive formula.
The biggest limitation is that Thorne products often provide high amounts of nutrients or combine many active ingredients. High quality does not eliminate the possibility of excessive intake, medication interactions or using a supplement that is unnecessary for the individual.
What makes Thorne different?
- Many formulas are manufactured directly by Thorne in South Carolina.
- The company reports four rounds of testing for manufactured supplements.
- More than 20 products currently carry NSF Certified for Sport status.
- Product pages generally disclose the amount and form of every active ingredient.
- Capsule and powder formulas commonly avoid unnecessary colors, dairy, gluten and soy.
- Thorne offers single nutrients, broad multis, sports products and complex botanical blends.
These are useful quality signals, but supplement quality and supplement necessity are separate questions. A carefully tested product can still be inappropriate for someone who already receives enough of the nutrient or has a relevant medication interaction.
Best overall: Basic Nutrients 2/Day
Basic Nutrients 2/Day is a comprehensive multivitamin and mineral formula taken as two capsules daily. The current 60-capsule bottle provides 30 servings and is listed at $36.
Notable amounts per two-capsule serving include:
- Vitamin D3: 50 mcg / 2,000 IU
- Vitamin K1: 200 mcg
- Vitamin K2 as MK-4: 200 mcg
- Vitamin C: 250 mg
- Vitamin B6 as pyridoxal-5-phosphate: 20 mg
- Vitamin B12 as methylcobalamin: 600 mcg
- Folate: 667 mcg DFE
- Niacin as niacinamide: 80 mg
- Zinc bisglycinate: 15 mg
- Selenium as selenomethionine: 200 mcg
- Chromium: 400 mcg
The formula uses several active or chelated nutrient forms and provides broad coverage in only two capsules. It does not provide large amounts of calcium or magnesium, so it should not be treated as a complete replacement for mineral-rich foods.
Basic Nutrients 2/Day is best for adults whose diet, laboratory results, life stage or healthcare guidance supports a broad multivitamin. NIH guidance emphasizes that multivitamins cannot replace a varied diet, because food supplies fiber and many other beneficial compounds.
Potential issues with Basic Nutrients 2/Day
Several nutrients are supplied at amounts far above 100% Daily Value. A large percentage on a label is not automatically harmful, but it increases the importance of reviewing all supplements used together.
- Vitamin K: can interfere with warfarin and other vitamin-K-sensitive anticoagulation plans.
- Vitamin B6: long-term excessive total intake can cause nerve problems.
- Vitamin D: should be counted with separate vitamin D supplements and fortified foods.
- Selenium and zinc: should not be duplicated automatically through several products.
- Chromium: may be unnecessary for many users and deserves review with diabetes medication.
- Folate: requires special consideration during methotrexate treatment and selected medical conditions.
People taking prescription medication, pregnant customers and anyone with kidney, liver, thyroid or blood-clotting conditions should review the formula with a healthcare professional.
Best magnesium product: Magnesium Bisglycinate
Magnesium Bisglycinate is a lightly sweetened powder made with magnesium bisglycinate, citric acid and monk fruit. One scoop currently supplies 200 mg elemental magnesium, equal to 48% Daily Value.
The container provides 60 servings and is listed at $52. Thorne recommends mixing one scoop with at least eight ounces of water daily.
Magnesium is involved in normal muscle and nerve function, blood-pressure regulation, blood-sugar control, bone formation and many enzyme reactions. The bisglycinate form is commonly selected because it is usually better tolerated than more strongly laxative forms.
However, claims that magnesium reliably cures insomnia or anxiety are stronger than the available evidence. A person with magnesium deficiency may benefit more clearly than someone who already meets nutritional needs.
Magnesium safety and interactions
NIH lists recommended total daily magnesium intake at 400–420 mg for adult men and 310–320 mg for most adult women. These totals include food and supplements.
Magnesium supplements can cause diarrhea, nausea, bloating or abdominal cramping. Thorne’s own warning notes that gas, bloating or diarrhea may occur and generally improves when the amount is reduced.
Magnesium can interfere with the absorption of some antibiotics and osteoporosis medications when taken too close together. Kidney disease can reduce the body’s ability to remove excess magnesium and requires medical supervision.
This powder is NSF Certified for Sport, which adds quality assurance for athletes but does not replace individualized dosing advice.
Best evidence-based sports product: Creatine
Thorne Creatine is the simplest featured product. Each scoop contains 5 g micronized creatine monohydrate with no other active ingredients.
The current 90-serving container is listed at $44. Thorne recommends mixing one scoop with at least eight ounces of water, juice or another beverage daily. The product can be used before or after training, but consistent daily intake matters more than precise timing for most users.
Creatine is one of the most extensively researched sports supplements. NIH summarizes evidence showing that creatine can improve strength, power and work performed during repeated short, intense efforts. Benefits are less predictable for long-duration endurance activity.
Creatine also increases water stored inside muscle cells and can lead to an early increase in body weight. This is not the same as gaining body fat.
Creatine safety and practical use
A daily 3–5 g maintenance dose is common in research and practice. A loading phase is optional rather than required.
Potential issues include:
- Temporary weight gain from increased cellular water
- Stomach discomfort when a large dose is consumed at once
- Difficulty interpreting creatinine blood tests without telling the clinician about creatine use
- Uncertainty during pregnancy and in people with kidney disease
Healthy adults generally tolerate standard creatine-monohydrate doses well, but anyone with kidney disease, unexplained abnormal kidney tests or multiple medical conditions should seek professional advice first.
Thorne Creatine is NSF Certified for Sport and is tested for label accuracy and prohibited substances, making it especially appealing to tested athletes.
Most comprehensive powder: Daily Greens Plus
Daily Greens Plus is a 30-serving powder containing 28 active ingredients. It is currently listed at $72, making it the most expensive featured product at about $2.40 per serving before subscription discounts.
Important ingredients per scoop include:
- Matcha: 1 g, supplying approximately 35 mg caffeine
- Spirulina: 1 g
- Moringa: 500 mg
- Kelp powder: 500 mg
- Lion’s mane: 300 mg
- Chaga: 250 mg
- Ashwagandha extract: 225 mg
- Rhodiola extract: 100 mg
- Nicotinamide riboside: 100 mg
- Quercetin phytosome: 100 mg
- Trans-resveratrol: 100 mg
- Reduced glutathione: 175 mg
- Vitamin D3: 25 mcg
- Biotin: 4 mg
- Zinc: 5 mg
Thorne deserves credit for disclosing individual quantities rather than hiding the formula inside a proprietary blend.
Daily Greens Plus is not a vegetable replacement
Despite the name, Daily Greens Plus does not provide the volume, dietary fiber, protein, potassium and food structure of several servings of vegetables.
One scoop currently supplies only 20 calories and less than one gram of dietary fiber. It is better understood as a multi-ingredient supplement containing greens, mushrooms, adaptogens and antioxidant compounds.
People should continue eating vegetables, fruit, beans, nuts, seeds and whole grains. The powder can complement a diet, but it cannot reproduce all benefits of whole food.
Ashwagandha and Daily Greens Plus cautions
NCCIH reports that ashwagandha may cause stomach upset, diarrhea, vomiting or drowsiness. Rare liver-injury cases have been linked to ashwagandha supplements.
Ashwagandha should be avoided during pregnancy and breastfeeding. It is not recommended before surgery or for some people with autoimmune or thyroid disorders. It may interact with medicines for diabetes, blood pressure, seizures, thyroid conditions, sedation and immune suppression.
Daily Greens Plus also contains kelp, matcha caffeine, mushrooms, rhodiola and high-dose biotin. High biotin intake can interfere with certain laboratory tests, including some thyroid and cardiac tests. Tell the laboratory and clinician before testing.
Thorne’s current warning advises people who are pregnant, nursing or trying to conceive not to use Daily Greens Plus.
Featured-product comparison
ProductServingCurrent priceBest for Basic Nutrients 2/Day2 capsules; 30 servings$36Broad foundational multivitamin support Magnesium Bisglycinate200 mg magnesium; 60 servings$52Single-mineral supplementation and active users Creatine5 g creatine; 90 servings$44Strength, power and high-intensity training Daily Greens Plus28 ingredients; 30 servings$72Customers wanting a complex all-in-one powderWhich Thorne product has the strongest evidence?
Among the featured products, creatine monohydrate has the strongest and most consistent evidence for a defined outcome: improving performance during repeated high-intensity effort and supporting strength gains when combined with training.
Magnesium has an essential biological role, but supplement benefits depend strongly on baseline intake and health status. Multivitamins can reduce nutrient gaps but do not reliably produce dramatic benefits in already well-nourished adults.
Daily Greens Plus contains many individually researched compounds, but evidence for each ingredient cannot be added together to prove that the combined powder provides every promoted outcome.
NSF Certified for Sport explained
NSF Certified for Sport evaluates manufacturing quality, label accuracy and the absence of hundreds of substances prohibited by major sports organizations.
Thorne says its certified sports products are tested for nearly 300 banned substances. This reduces risk for tested athletes, but no certification can guarantee that a product will improve performance.
In this review, Thorne Creatine and Magnesium Bisglycinate carry NSF Certified for Sport status. Thorne also sells an NSF-certified version of Basic Nutrients 2/Day as a separate product variation.
Manufacturing and quality controls
Thorne says its U.S. manufacturing process uses four testing stages:
- Identity and purity testing of raw materials and components
- In-process checks during production
- Finished-product testing for identity, potency, purity and microbiological contamination
- Stability testing to confirm label claims through expiration
The company also reports more than 100,000 laboratory tests each year and regular third-party audits of its manufacturing, warehouse and shipping facilities.
These practices are strong quality signals. They do not transform supplements into FDA-approved medicines or prove that every benefit statement applies to every customer.
Are Thorne supplements FDA approved?
No dietary supplement is approved by the FDA in the same way as a prescription drug before being sold. Manufacturers are responsible for product safety, manufacturing compliance and truthful labeling.
Thorne’s testing, NSF certification and professional reputation can improve buyer confidence, but users should still read the Supplement Facts panel, warnings and medication interactions.
Subscription savings
Thorne’s current retail subscription policy provides:
- 10% discount on subscription refill orders
- 20% discount when three or more products are on subscription
- Editable quantity, frequency, payment method and shipping address
- Automatic shipment notifications
The discount may not apply to the initial product purchase or product bundles. Customers should review checkout and the first refill confirmation rather than assuming the first order receives the full advertised discount.
One-time purchase is the better option for Daily Greens Plus or any formula containing many ingredients until tolerance is established.
Shipping and international orders
Current U.S. retail orders receive free ground shipping except for Alaska and Hawaii, where separate thresholds and fees apply.
Orders normally ship on the next business day and arrive approximately three to seven business days after shipping. Thorne also ships to selected international destinations, where delivery can take four to six weeks and customers are responsible for duties, taxes and customs fees.
Not every product is eligible for every international destination because national supplement regulations differ.
Returns and satisfaction guarantee
Thorne currently allows customers to request a return within 60 days of purchase. Approved direct returns are subject to a 25% restocking fee.
The separate 60-Day Satisfaction Guarantee can provide a refund, store credit or replacement for qualifying products purchased through Thorne or authorized sellers. Customers should contact support for instructions before sending anything back.
Internationally shipped products cannot currently be returned and are treated as final sales.
Common supplement-stacking mistakes
- Using Basic Nutrients 2/Day together with another multivitamin
- Adding separate vitamin D, zinc, selenium or B-complex without calculating totals
- Combining Magnesium Bisglycinate with several magnesium sleep products
- Taking Daily Greens Plus with separate ashwagandha, rhodiola, mushroom and biotin products
- Using several NSF products but assuming certification eliminates dose-related side effects
- Beginning four new supplements at once, making side effects difficult to identify
Introduce products one at a time when possible and keep an updated supplement list for medical appointments.
Who should consider Thorne?
- Customers who value detailed labels and U.S. manufacturing control.
- Competitive athletes seeking NSF Certified for Sport products.
- Adults with a documented or plausible reason for a multivitamin or mineral supplement.
- Strength athletes wanting plain creatine monohydrate.
- People willing to pay more for extensive testing and professional-style formulas.
Who may want to look elsewhere?
- Budget shoppers seeking the lowest cost per serving.
- People who prefer food-first nutrition and do not have a supplement need.
- Customers taking several medicines without professional review.
- Pregnant or breastfeeding users considering complex botanical products.
- People who want very simple formulas but are considering Daily Greens Plus.
- Customers uncomfortable with a 25% restocking fee.
What we like
- Strong manufacturing and testing program.
- Many NSF Certified for Sport products.
- Detailed ingredient amounts and forms.
- Simple, evidence-based creatine formula.
- Free ground shipping for most U.S. retail orders.
- Broad catalog for different needs.
What could be better
- Premium pricing.
- Some formulas contain high nutrient amounts.
- Complex products create more interaction risk.
- Daily Greens Plus contains caffeine and multiple botanicals.
- Approved returns may lose 25% to a restocking fee.
- Subscription discount details can be misunderstood.
Final verdict: Is Thorne worth buying?
Thorne is worth considering for customers who prioritize manufacturing quality, label transparency and sports certification. The brand is particularly strong when the selected supplement has a clear purpose.
Basic Nutrients 2/Day is the best general introduction, but it should be reviewed alongside diet and existing supplements. Magnesium Bisglycinate is appropriate when magnesium supplementation makes sense, while Creatine offers the clearest performance evidence. Daily Greens Plus is the most comprehensive option but requires the most caution.
Choose one product based on a defined need, check the complete ingredient and medication profile and avoid assuming that more supplements will automatically produce better health.
Pros and cons
What stands out
- Strong quality-control system
- Large NSF Certified for Sport range
- Transparent labels
- Evidence-based creatine option
- Broad product selection
- Flexible subscriptions
Trade-offs
- Premium prices
- Some high-dose formulas
- Complex interaction profiles
- Caffeine in Daily Greens Plus
- 25% restocking fee
- International returns not accepted
Rating details
Product details
Learn More
- Thorne official website
- Thorne manufacturing and quality controls
- Thorne NSF Certified for Sport information
- Basic Nutrients 2/Day official product page
- Magnesium Bisglycinate official product page
- Creatine official product page
- Daily Greens Plus official product page
- Thorne subscription information
- Thorne shipping information
- Thorne returns and exchanges
- NIH multivitamin and mineral supplement guidance
- NIH magnesium consumer fact sheet
- NIH exercise and performance supplement fact sheet
- NCCIH ashwagandha safety information
Consult a qualified healthcare professional before using supplements or making significant changes to diet, exercise or treatment.
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