Every question we answer
113 questions, each answered from the same prices and certification records as the comparison tables, and recomputed on every build. Where an answer is “we do not know”, it says so.
Creatine Monohydrate · just these questions · see every product
Is BulkSupplements creatine NSF certified?
Which BulkSupplements creatine packages NSF names in its Certified for Sport database, which are listed only at another size, and the listing IDs.
What is the cheapest NSF Certified for Sport creatine?
Every creatine we track whose exact package appears in NSF’s Certified for Sport database, ranked per 5 g. Each price says whether it includes delivery.
NSF Certified for Sport vs Informed Sport: what is the difference?
What each program tests: label dose, contaminants, banned substances, manufacturing review and how often, from each program’s own published process.
How much does creatine cost per serving?
Creatine prices compared per 5 g serving, cheapest first, from each label’s own serving size. Powders, capsules and travel packs, before delivery.
Which creatine brands are third-party tested?
Every creatine we track, grouped by which independent program lists it, and which we searched for and did not find. Absence is not a verdict.
Is Thorne creatine worth the price?
What the certification records show for Thorne creatine and for the cheapest certified alternative, and the gap between them per 5 g of creatine.
Creatine powder vs capsules: which should you buy?
A 5 g creatine dose is one scoop of powder or a handful of capsules, and the capsules cost far more per dose. Both figures come from the panels.
Thorne vs Momentous creatine: which costs less per 5 g?
Every Thorne and Momentous creatine package we price, side by side per 5 g, with the sizes each brand’s NSF Certified for Sport listing names.
BPN vs Momentous creatine: which costs less per 5 g?
Every Bare Performance Nutrition and Momentous creatine package we price, side by side per 5 g, with the sizes each brand’s NSF Certified for Sport listing names.
Is Thorne creatine NSF certified?
Thorne creatine checked against NSF Certified for Sport: which tubs and stick packs a listing names, with the listing IDs.
Is Optimum Nutrition creatine third party tested?
Which testing programs list Optimum Nutrition micronized creatine, which packages we price each listing covers, and the cost per 5 g.
Is a bigger tub of creatine cheaper per serving?
The same creatine sold in several sizes, priced per 5 g serving at each size from the same store, and which sizes a certifier names.
How many servings are in a tub of creatine?
Servings in every creatine tub and capsule bottle we track, and which counts the label prints and which we worked out from net weight.
Is Momentous creatine NSF certified?
Momentous creatine checked against NSF Certified for Sport: which tub sizes a listing names, with the listing IDs.
Is BPN creatine NSF certified?
Bare Performance Nutrition creatine checked against NSF Certified for Sport: which tub sizes a listing names, with the listing IDs.
Does micronized creatine cost more?
Which creatine packages call themselves micronized, what each costs per 5 g, and what the panels state. Particle size is not something this page tests.
Is NOW Foods creatine third party tested?
NOW Foods creatine, sold as NOW Sports, checked against Informed Sport and NSF Certified for Sport: what each program lists, and cost per 5 g.
Is Sports Research creatine third party tested?
Sports Research creatine checked against NSF Certified for Sport and Informed Sport, and whether each listing covers the tub sizes we price.
Magnesium · just these questions · see every product
How much does magnesium cost per dose?
What 200 mg of elemental magnesium costs across every magnesium we price, cheapest to most expensive, with the salt each panel names. Before delivery.
What is the cheapest magnesium per dose?
Every magnesium we track, priced per 200 mg of elemental magnesium, not per capsule or bottle, grouped by salt. The salt and the brand both move the price.
Magnesium glycinate vs citrate: what is the difference?
What each form costs per 200 mg of elemental magnesium, how many capsules that takes, and what the Supplement Facts panels say. Absorption is not compared.
Is magnesium glycinate actually all glycinate?
Some products sold as one magnesium salt name a second salt on their own Supplement Facts panel. What each panel we have read says, by product.
Is magnesium glycinate third party tested?
Which magnesium glycinate and bisglycinate products a certifier names at the exact package sold, which only at another size, and which not at all.
Which magnesium brands are third-party tested?
Every magnesium we track, grouped by whether a certifier names the exact package sold, only another size, or nothing we found. By salt.
Magnesium glycinate vs malate: what is the difference?
What each form costs per 200 mg of elemental magnesium, how many capsules that takes, and what the Supplement Facts panels name. Absorption is not compared.
Why is magnesium L-threonate so much more expensive?
L-threonate costs many times more per 200 mg of elemental magnesium than glycinate. Little of the compound is magnesium, and that is most of the gap.
Magnesium citrate vs oxide: what is the difference?
What oxide and citrate each cost per 200 mg of elemental magnesium, how many units a dose takes, and what each panel names.
Magnesium glycinate vs taurate: what is the difference?
Magnesium glycinate and taurate priced per 200 mg of elemental magnesium, with the capsules each takes and what the labels name. Absorption is not compared.
How many capsules of magnesium do you have to take?
How many capsules, softgels or scoops each magnesium product needs to reach 200 mg of elemental magnesium. The number varies widely across products.
Is Thorne magnesium NSF certified?
Thorne magnesium bisglycinate, glycinate capsules and citrate checked against NSF Certified for Sport: which package each listing names, with the listing IDs.
What is the cheapest NSF certified magnesium?
Every magnesium we track whose exact package NSF names in its Certified for Sport database, ranked by cost per 200 mg of elemental magnesium, by salt.
Is BulkSupplements magnesium NSF certified?
Every BulkSupplements magnesium we price, checked in NSF’s Certified for Sport database: which bags a listing names, which it does not, and the listing IDs.
Is Momentous magnesium NSF certified?
Momentous magnesium bisglycinate, L-threonate and malate checked against NSF Certified for Sport: which bottle each listing names, with the listing IDs.
How much elemental magnesium is in magnesium glycinate?
What the milligrams on a magnesium label mean: the compound weight a bottle names, the elemental magnesium its panel states, and how the two differ by form.
What is the cheapest magnesium glycinate?
Every magnesium glycinate package we price, ranked by what 200 mg of elemental magnesium costs, with the ones whose panel names another salt kept apart.
Is Nature Made magnesium USP Verified?
Nature Made magnesium glycinate, citrate and oxide checked against USP’s Verified directory and each label’s mark, package by package.
Vitamin D3 · just these questions · see every product
Which vitamin D3 brands are third-party tested?
Every vitamin D3 and D3 + K2 we track, grouped by whether a certifier lists the exact bottle, another size, or nothing we found. Absence is not a verdict.
Vitamin D3 1,000 IU vs 5,000 IU: which costs less?
What each strength costs per 1,000 IU, read from the labels and the prices we hold. A price comparison only: we do not say which strength anyone should take.
How much more does vitamin D3 with K2 cost?
Some brands sell the same softgel with and without K2, so the price of the K2 can be read from the labels. Compared at the same strength, from the panels.
Is BulkSupplements vitamin D3 NSF certified?
Which BulkSupplements D3 softgels NSF Certified for Sport names, at which bottle sizes, and which it does not, with the listing IDs.
Is Momentous vitamin D3 NSF certified?
Which Momentous vitamin D3 bottles we price NSF Certified for Sport names at the exact package. The listing IDs, the strengths and what each covers.
Is Thorne vitamin D NSF certified?
Thorne D-1,000, D-5,000, D-10,000 and the liquids checked against NSF Certified for Sport: which bottles a listing names, with the listing IDs.
What is the cheapest NSF certified vitamin D3?
Every vitamin D3 and D3 + K2 we track whose exact bottle NSF names in its Certified for Sport database, compared on cost per 1,000 IU within each strength.
What is the cheapest vitamin D3?
Every plain vitamin D3 we track, priced per 1,000 IU from its own label and ranked within each labeled strength, with which packages a certifier names.
Is a vitamin D3 label in mcg the same as one in IU?
Convert vitamin D3 mcg to IU and back, checked against every label we price: one mcg is 40 IU, so 25 mcg is 1,000 IU and 125 mcg is 5,000 IU.
Is Nature Made vitamin D3 USP Verified?
Nature Made vitamin D3, every strength and count we price, checked against USP’s Verified directory and the USP Verified Mark on each bottle’s label.
Omega-3 · just these questions · see every product
What is the cheapest omega-3 per 1,000 mg of EPA+DHA?
Every omega-3 we track, priced per 1,000 mg of combined EPA+DHA instead of per softgel or per bottle, split by fish, algal and krill oil.
Why does my fish oil label not say how much EPA and DHA it has?
Some fish oil panels print a total omega-3 figure, or only the oil weight, and name EPA and DHA with no amounts. Those cannot be priced per dose.
Which fish oil and omega-3 brands are third-party tested?
Every fish, algal and krill oil we track, grouped by whether a certifier names the exact bottle sold, another size, or nothing we found.
How many fish oil capsules make 1,000 mg of EPA and DHA?
Fish, algal and krill oils by how many softgels reach 1,000 mg of combined EPA and DHA, read from each label. A price yardstick, not a recommended dose.
Is Nordic Naturals third-party tested?
Nordic Naturals Ultimate Omega and Ultimate Omega-D3 Sport checked bottle by bottle against NSF’s Certified for Sport database and the IFOS directory.
Is Thorne fish oil third-party tested?
Thorne Super EPA, Super EPA Pro, Omega-3 with CoQ10 and Omega Superb checked bottle by bottle in NSF’s Certified for Sport database, with the listing IDs.
What is the cheapest NSF certified fish oil or omega-3?
Every omega-3 we track whose exact bottle NSF names in its Certified for Sport database, ranked by cost per 1,000 mg of combined EPA and DHA.
Krill oil vs fish oil: which costs less per dose of EPA and DHA?
What krill oil and fish oil cost for the same EPA and DHA, and how many softgels of each it takes to get there. Algal oil is priced alongside them.
Is Nature Made fish oil USP Verified?
Nature Made fish oil, bottle by bottle: which are in USP’s Verified directory with the USP Verified Mark on the label, and which we found no row for.
Is Sports Research fish oil third party tested?
Sports Research fish oil, krill oil and algal DHA checked bottle by bottle against the Nutrasource directory that publishes IFOS results and NSF’s database.
Is Momentous fish oil NSF certified?
Momentous Omega-3, its travel packs and the vegan omega-3 checked against NSF Certified for Sport and the IFOS directory, with the listing IDs.
Whey Protein · just these questions · see every product
What is the cheapest whey protein per gram of protein?
Whey protein prices compared per 25 g of protein, cheapest first, from each Supplement Facts panel, not per scoop or per tub. Shelf price, before delivery.
Whey isolate vs concentrate: which is cheaper per gram of protein?
What each brand’s whey costs for the same 25 g of protein, isolate against concentrate, and where an isolate scoop carries more protein than the concentrate.
Which whey protein brands are third-party tested?
Every whey protein we track, grouped by whether a certifier lists the exact package sold, another size, or nothing we found. Absence is not a verdict.
How much does whey protein cost per serving?
What each whey we track costs per serving, next to the grams of protein in that serving. A serving is not the same amount of protein at every brand here.
Is BulkSupplements whey protein NSF certified?
Which BulkSupplements whey lines appear in NSF’s Certified for Sport database, and the packages each listing names, read from the certifier’s own listings.
Is BPN whey protein NSF certified?
BPN whey protein and whey isolate are named in NSF Certified for Sport, flavor by flavor. What each vanilla tub we price is covered by, with listing IDs.
Is Thorne whey protein third-party tested?
Thorne whey protein isolate in chocolate and vanilla, tubs and packets, checked package by package in NSF’s Certified for Sport database, with listing IDs.
What is the cheapest NSF certified whey protein?
Every whey we track whose exact tub NSF names in its Certified for Sport database, ranked by cost per 25 g of protein read from the brand’s own panel.
How many grams of protein are in a scoop of whey?
What one labeled scoop of whey holds, from the panel of every package we price, and why two tubs sold as the same servings are not the same purchase.
Plant Protein · just these questions · see every product
What is the cheapest plant protein powder?
Every plant protein we track, priced per 25 g of protein read from its own Supplement Facts panel rather than per scoop or per tub, cheapest first.
Which plant protein brands are third-party tested?
Every plant protein we track, grouped by whether a certifier names the exact tub sold, another size, or nothing we found. Absence is not a verdict.
Plant protein vs whey protein: which costs less per 25 g of protein?
What 25 g of protein costs from plant powders and from whey, package by package on the same basis. A price comparison only: protein quality is not compared.
What is the cheapest pea protein powder?
Pea protein priced per 25 g of protein from each label, not per scoop or per bag, cheapest first. Only panels that name pea and nothing else.
What is the cheapest NSF certified plant protein?
Every plant protein whose exact package NSF names in its Certified for Sport database, ranked by cost per 25 g of protein as its own panel prints it.
How many grams of protein are in a scoop of plant protein?
How many grams of protein one labeled serving holds, from the panel of every plant protein we price, and why equal serving counts are not equal purchases.
Is Thorne plant protein NSF certified?
Thorne Plant Protein in chocolate and vanilla, checked flavor by flavor in NSF's Certified for Sport database, with the listing IDs.
Is BPN Vegan Protein NSF certified?
BPN Vegan Protein checked flavor by flavor in NSF's Certified for Sport database, with the listing IDs.
Is Momentous plant protein NSF certified?
Momentous 100% Plant Protein in each flavor and the travel packs, checked against NSF Certified for Sport flavor by flavor, with the listing IDs.
Collagen Peptides · just these questions · see every product
What is the cheapest NSF certified collagen?
Every collagen peptides product we track whose exact package NSF names in its Certified for Sport database, ranked by cost per 10 g of collagen.
How much collagen is in a scoop?
How many grams of collagen a labeled serving holds, across every package we price, and why two tubs sold as the same servings are not the same purchase.
What is the cheapest collagen peptides powder?
Every collagen we track, ranked by what 10 g of collagen costs from its own panel, not per scoop or per tub, with the source and who names the package.
Marine collagen vs bovine collagen: what is the difference in price?
What marine and bovine collagen cost per 10 g of collagen peptides, from the panel of every product we track, and what each label names as its source.
Which collagen brands are third-party tested?
Every collagen peptides product we track, grouped by whether a certifier names the exact tub, another size, or nothing we found. Bovine, marine and mixed.
Is BUBS collagen NSF certified?
BUBS Naturals Collagen Peptides checked against NSF’s Certified for Sport database: which tub and which travel pack each listing names, with the listing IDs.
Is Momentous collagen NSF certified?
Momentous Collagen Peptides checked against NSF’s Certified for Sport database: which package the listing names, the jar or the travel packs, with its ID.
Is Sports Research collagen third party tested?
Sports Research collagen peptides, marine collagen and the travel packs checked against LGC’s Informed Choice list and NSF’s database, package by package.
Is Thorne collagen NSF certified?
Thorne Collagen Fit and Collagen Plus checked against NSF Certified for Sport: which of the two a listing names, with the listing ID.
Is BulkSupplements collagen NSF certified?
Every BulkSupplements bovine collagen bag we price, checked in NSF’s Certified for Sport database: the bag a listing names, and those listed at another size.
Vitamin B12 · just these questions · see every product
Methylcobalamin vs cyanocobalamin: what is the price difference?
What each form of vitamin B12 costs per 1,000 mcg at the same labeled strength, with what the Supplement Facts panels say. Absorption is not compared.
Which vitamin B12 brands are third-party tested?
Every vitamin B12 we price, grouped by whether a certifier names the exact bottle sold, another size, or nothing we found. Absence is not a verdict.
What is the cheapest vitamin B12?
Every vitamin B12 we track, both forms, priced per 1,000 mcg from its own label and ranked within each labeled strength, with which bottles a certifier names.
Is Nature Made vitamin B12 USP Verified?
Nature Made vitamin B12, every strength and count we price, checked against USP’s Verified directory and the USP Verified Mark on each label.
Is Thorne vitamin B12 NSF certified?
Thorne Vitamin B12 checked against NSF Certified for Sport bottle by bottle: which counts the listing names, with the listing ID.
Zinc · just these questions · see every product
How much does zinc cost per dose?
What 15 mg of elemental zinc costs across every zinc we price, cheapest to most expensive, with the salt each panel names. Before delivery.
What does chelated zinc mean on a label?
Chelated is mostly a shopping word. What the panels of the products sold under it actually name, which panels print the word, and the price per 15 mg.
What is the cheapest zinc per dose?
Every zinc we track, priced per 15 mg of elemental zinc instead of per capsule or per bottle, grouped by the salt its own panel names.
Which zinc brands are third-party tested?
Every zinc we track, grouped by whether a certifier lists the exact bottle sold, another size, or nothing we found. Absence is not a verdict.
Zinc picolinate vs gluconate: what is the difference?
What each form costs per 15 mg of elemental zinc, how many capsules that takes, and what the Supplement Facts panels name. Absorption is not compared.
Is BulkSupplements zinc NSF certified?
Which BulkSupplements zinc products NSF Certified for Sport names at the exact package sold, which it does not, and the listing IDs behind each.
Is Thorne zinc NSF certified?
Thorne zinc picolinate and bisglycinate checked bottle by bottle in NSF’s Certified for Sport database, including the bottle sold with the mark on it.
What is the cheapest NSF certified zinc?
Every zinc we track whose exact bottle NSF names in its Certified for Sport database, ranked by cost per 15 mg of elemental zinc, before delivery.
Zinc bisglycinate vs picolinate: what is the difference?
What each form costs per 15 mg of elemental zinc, how many capsules that takes, and what each Supplement Facts panel names. Absorption is not compared.
Across every supplement
Do third-party tested supplements cost more?
The cheapest product we track in each category beside the cheapest one a certifier names at the exact package, where one exists, and the gap per dose.
Is BulkSupplements third party tested?
Every BulkSupplements product we track, by whether a certifier names the exact package sold, only another size, or nothing we found. With listing IDs.
Do supplement travel packs cost more per dose?
Every travel pack or single-serve packet we price, next to the same brand’s smallest tub or bottle of the same product, per comparison dose.
Is Thorne third party tested?
Every Thorne product we price, checked in NSF’s Certified for Sport database: which listing names the exact package sold, with the listing IDs.
Is Core Med Science third party tested?
Every Core Med Science product we price, checked in NSF’s Certified for Sport database: which listing names the exact package sold, and the IDs.
Is Optimum Nutrition third party tested?
Every Optimum Nutrition product we track, checked in the certifier databases: what each listing covers, package by package, with the listing IDs.
Is Momentous third party tested?
Every Momentous product we price, checked in NSF’s Certified for Sport database: where a listing names the exact package, and where it names another size.
Is BPN third party tested?
Every Bare Performance Nutrition product we price, checked in NSF’s Certified for Sport database: which package each listing names, and which it does not.
Which supplements are NSF Certified for Sport?
Every package we price that NSF names in its Certified for Sport database, by category, with the listing IDs and what each listing actually covers.
Do supplement prices actually change?
We re-read every price we can read automatically each day and keep every reading. Which prices have moved since we started, which have not, and by how much.
How many capsules is one serving?
How many pills the label calls one serving, across every capsule, tablet and softgel we price, and what that does to the count on the front of the bottle.
Is BUBS Naturals third party tested?
Every BUBS Naturals product we price, checked in NSF’s Certified for Sport database: which listing names the exact package sold, with the listing IDs.
Is Sports Research third party tested?
Every Sports Research product we track, checked in the certifier databases: which program lists each one, and which no database we searched lists.
Is Nature Made third party tested?
Every Nature Made product we price, checked against USP’s Verified Products directory and its own label: which packages carry both, product by product.
What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.