Thorne Magnesium Bisglycinate Powder (60 servings)
Best for: Drug-tested athletes, tablet-haters, flexible dosing
The athlete-grade magnesium — NSF Certified for Sport, powder format, and a higher price than our value pick.
Thorne's powder is magnesium bisglycinate (bisglycinate = glycinate — Thorne's own page says so). Doctor's Best, our value pick, uses a different chelate: its label names magnesium lysinate glycinate. What you pay extra for: NSF Certified for Sport testing, a lightly monk-fruit-sweetened powder, and Thorne's practitioner-grade manufacturing. 200 mg elemental magnesium per scoop, 60 scoops.
Price & where to buy
Prices checked 2026-11-11Prices shown were last checked on 2026-11-11 and can change at any time — the price on the retailer's site at checkout is the one that applies. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product. As an Amazon Associate and affiliate we may earn a commission on purchases made through these links, at no extra cost to you.
How our prices work
We show the price at our recommended retailer as at our last check of that offer (2026-11-11) and, when Amazon reports one, its list price for comparison. Amazon prices come from Amazon's own product data service and are refreshed twice a day; each one shows the date and time Amazon gave it, and one older than 24 hours is replaced by “Check price”. Other retailers' prices are checked by hand and show the date of that check. Retail prices move constantly, so the price on the retailer's own page at checkout is the one that applies. More on Amazon prices
Should you buy it?
What we like
- NSF Certified for Sport — banned-substance tested
- Powder = adjustable dose, no horse pills
- Gluten, dairy and soy free
What to know before buying
- Costs far more per serving than Doctor's Best tablets
- Monk-fruit sweetness is polarizing
- Powder is less travel-friendly than capsules
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At a glance
Compare with alternatives
Quick verdicts for the supplements most often considered alongside the Thorne Magnesium Bisglycinate Powder (60 servings).
Thorne Magnesium Bisglycinate Powder (60 servings) vs Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
The highest-rated magnesium on Amazon — 240 tablets from Doctor's Best.
→ Value-focused buyers, athletes
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct) review →Thorne Magnesium Bisglycinate Powder (60 servings) vs NOW Magnesium Citrate 200mg
The budget workhorse — citrate from a GMP-certified 50-year brand, at the lowest cost per mg in our lineup.
→ Budget magnesium buyers
NOW Magnesium Citrate 200mg review →Thorne Magnesium Bisglycinate Powder (60 servings) vs Life Extension Neuro-Mag Magnesium L-Threonate
Life Extension's three-capsule magnesium L-threonate, with published certificates of analysis.
→ Magtein buyers, published-CoA shoppers
Life Extension Neuro-Mag Magnesium L-Threonate review →Not sure which one is right for you?
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Frequently asked questions
Thorne bisglycinate vs Doctor's Best glycinate — what's the actual difference?
Their labels name different chelates: magnesium bisglycinate for Thorne, magnesium lysinate glycinate (Albion TRAACS) for Doctor's Best. Beyond that you're paying for NSF Certified for Sport testing, powder format, and practitioner-brand manufacturing. We make no claim about which chelate absorbs better.
Is one scoop enough for sleep?
We don't publish dosing guidance — ask a pharmacist or your doctor.
Why does NSF Certified for Sport matter?
It's batch-testing for substances banned in competitive sport, plus label-claim verification. If you're drug-tested, it's the certification that protects you; if you're not, it's reassurance you may not need to pay for.
Does it cause stomach upset?
We don't publish dosing guidance — ask a pharmacist or your doctor.