Products · Vitamins & minerals · Thorne
Thorne Basic Nutrients 2/Day
Reader ratings
A two-capsule multivitamin with every amount on the label and no iron, listed in NSF’s Certified for Sport database. It has vitamin K (a warfarin issue) and 80 mg of niacinamide, over a US limit set for flushing. No batch results.
Best for People who want a multivitamin with an outside tester behind the label and active B forms, and who do not take warfarin or need iron.
- Our quality rating
- Good (4 of 5)
- Price range
- Premium
- Verified marks
- NSF Certified for Sport (capsule, 60 count)
- Size
- 60 capsules (30 servings of 2 capsules)
approx. $40 for 60 capsules
See it on Thorne’s site →We are not affiliated with Thorne. This link goes to the maker’s own page, with no tracking code. How we're funded.
Reader ratings & reviews
– out of 5
Loading ratings…
Rating breakdown
- 5 stars 0
- 4 stars 0
- 3 stars 0
- 2 stars 0
- 1 star 0
Have this product? Please rate it.
Check your email
We sent a sign-in link to . Click it and you’ll come straight back here, signed in. It expires in 15 minutes; check your spam folder if it doesn’t show up. Thank you for helping the community!
Your review
Reviews are personal experiences, not research, and they never change our quality ratings. Every review is read by our team before it appears.
How we evaluated it
Why we chose it What put it on our list
- NSF’s Certified for Sport database lists “Thorne Basic Nutrients 2/Day”: capsule, 60 count, serving size 2 capsules, with 16 lots shown (the first is 411581). Thorne’s page for the 60-capsule bottle carries the NSF Certified for Sport name.
- Every ingredient has an amount, and there is no proprietary blend. The B vitamins are in active forms (folate as L-5-MTHF 667 mcg DFE, B12 as methylcobalamin 600 mcg, B6 as pyridoxal 5’-phosphate 20 mg), and the minerals are glycinates (zinc 15 mg, copper 0.75 mg, manganese 3 mg, selenium 200 mcg).
- It has vitamin D3 at 50 mcg (2,000 IU) and vitamin K as K1 200 mcg plus K2 as MK-4 200 mcg, and it has no iron.
- The only other ingredients are the cellulose capsule, calcium laurate and dicalcium phosphate.
Trade-offs What to weigh before you buy
- Niacin is 80 mg a day as niacinamide. The US upper limit for niacin from supplements is 35 mg a day. It was set to avoid flushing, a side effect of nicotinic acid that niacinamide rarely causes (Linus Pauling Institute). Europe sets separate limits, and its upper level for nicotinamide is 900 mg a day (EU Scientific Committee on Food, 2002, as cited by EFSA). So 80 mg is over the US figure and far under the European one.
- It contains vitamin K (K1 and K2). Thorne’s page says vitamin K interferes with warfarin (Coumadin) and the two should not be used together. Ask a prescriber before using it with any blood thinner.
- It costs about $40 a month ($1.33 a day). NSF’s listing is for the 60-capsule bottle; Thorne’s 120-capsule bottle (about $68) is a separate item whose page does not say it is NSF Certified for Sport, and its listed vitamin A amount differs (600 mcg of palmitate against 1,050 mcg).
- No batch certificate is public. NSF’s listing shows lot numbers but not results, and Thorne’s page shows none.
- Large trials found little protection from a daily multivitamin for people who eat well; see our guide before deciding you need one.
What to know Details worth knowing first
Our multivitamin guide says large trials found little protection against heart disease, cancer or early death from a daily multi, though some groups clearly benefit. So think of this as a way to cover gaps, not an upgrade. If you want one, the useful questions are what is in it and who tested it.
Thorne’s Basic Nutrients 2/Day answers both. Every amount is on the label, the B vitamins are in active forms, and NSF lists the product and its lots in its Certified for Sport database. It has no iron. Our iron guide advises testing before supplementing, because excess iron is hard to excrete.
Three things to weigh. The niacin is 80 mg as niacinamide, over the US 35 mg limit, which was set for the flushing that niacinamide rarely causes; Europe’s limit for it is 900 mg. It contains vitamin K, which matters if you take warfarin. And Thorne does not publish batch results. For what a seal can and cannot tell you, see how to tell if a supplement is pure.
Quality & testing How it measures up against our checklist
- Third-party tested
- Yes
- Tested by
- NSF (Certified for Sport)
- Certificate of analysis
- No
| What we checked | What we found |
|---|---|
| Third-party tested Verified | Listed in NSF’s Certified for Sport database as “Thorne Basic Nutrients 2/Day”: capsule, 60 count, 16 lots, gluten-free claim. The listing shows no certification date or status. Thorne’s 60-capsule page names the NSF mark. |
| A certificate of analysis Not verified | None on Thorne’s page, and NSF’s listing shows lot numbers but no results. |
| The right form Maker’s claim | Active B forms and glycinate minerals, as above. Niacin is 80 mg as niacinamide. That is over the US upper limit of 35 mg for niacin from supplements, which was set for flushing (rare with niacinamide), and well under Europe’s 900 mg a day for nicotinamide. |
| A plain label Maker’s claim | Every active ingredient has an amount. No proprietary blend. |
| Disclosed extras Maker’s claim | Hypromellose capsule, calcium laurate, dicalcium phosphate. Thorne lists it as gluten-free, dairy-free and soy-free. Its warnings mention iodine allergy. |
| Interactions Maker’s claim | Thorne warns that vitamin K interferes with anticoagulants such as Coumadin, and that 5-MTHF folate is not recommended alongside methotrexate cancer therapy. |
What the labels mean
- Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
- Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
- Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.
Sources Where our facts come from
- Thorne Basic Nutrients 2/Day product page (60 capsules). Maker’s page. Price, label amounts and warnings as seen 2026-10-22. Open ↗
- NSF Certified for Sport listing: Thorne Basic Nutrients 2/Day. Certifier or regulator listing. 16 lots shown. NSF also lists Thorne Multi-Vitamin Elite, a different product. Open ↗
- Linus Pauling Institute: niacin. Independent source. Says the 35 mg upper limit was set to avoid flushing and that flushing from nicotinamide is rare. Open ↗
- EFSA: safety of nicotinamide riboside chloride as a novel food (EFSA Journal 2019;17(8):e05775). Independent source. States that an upper level of 900 mg a day for nicotinamide was established for adults (EU Scientific Committee on Food, 2002). Open ↗
Alternatives Other options to compare
- Food first, plus single nutrients you are actually low in Our multivitamin guide covers who benefits and who does not.
- Momentous Multivitamin NSF listing and public lot certificates, 4 capsules a day, about $55. Its product page lists no K2, but its lot certificates show 50 mcg of K2 as MK-7, so we hold it back until the owner checks a bottle.