Zinc Bisglycinate

Pick your strength first. Within each strength the packages are listed cheapest first, priced per 15 mg so different bottles compare fairly. Strengths are never compared against each other.

15 mg per serving

1 product

Brand	Per 15 mg	Bottle	Verification
Thorne 60 capsules C · Claimed	25.0¢ delivered	$15.00 buy	C · Claimed

22.5 mg per serving

2 products

Brand	Per 15 mg	Bottle	Verification
MegaFood 120 tablets · cheapest here D · None located	15.6¢ + delivery	$27.99 buy	D · None located
MegaFood 60 tablets D · None located	20.0¢ + delivery	$17.99 buy	D · None located

30 mg per serving

1 product

Brand	Per 15 mg	Bottle	Verification
Thorne 60 capsules C · Claimed	16.7¢ delivered	$20.00 buy	C · Claimed

50 mg per serving

1 product

Brand	Per 15 mg	Bottle	Verification
Nutricost 120 capsules D · None located	3.49¢ + delivery	$13.97 buy	D · None located

Common questions

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.

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.

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.

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.

Every zinc question in one place

About these numbers

What “per dose” means here: 15mg elemental zinc

15 mg of elemental zinc is a round number inside the range zinc labels print, chosen so that capsules of very different strengths are priced on the same amount of the mineral. Signed off by Dan on September 14, 2026 as the category yardstick, on the same footing as the others: a unit for comparing prices, not a recommended intake, and it cannot change which product is cheapest, because every product is scaled by the same number. Compared on elemental zinc as printed on the panel, never on the weight of the salt. The reference is cited for the yardstick alone, and this rationale deliberately makes no claim about what intake guidelines say.

Compared on elemental zinc as printed on the panel, never on the weight of the salt (picolinate, bisglycinate, citrate, gluconate, sulfate). Same trap as magnesium: the salt weight can be several times the zinc it carries.

Source: NIH Office of Dietary Supplements, Zinc - Health Professional Fact Sheet · checked Sep 14, 2026

Where the data comes from

Every claim links to its source. Products, prices and certification listings are read from the retailers' own stores and the certifiers' own databases, and each figure links to the record it came from, so you can check any of them.

Where a label does not state servings per container, the figure is derived from net weight and the product page says so.
Amazon and Walmart are not included, so “cheapest” means cheapest among the retailers we track.
Prices go stale. Each one shows when it was last checked, and says so when it is older than the retailer allows us to cache it.
iHerb prices cannot be refreshed automatically. iHerb has not given us access to its price data, so those prices are marked stale until they are re-read. Each retailer offer carries its own check date.

Found something wrong? Tell us. Corrections are the point.

How we make money

No Buy button on this page earns us anything. The only links on the site that can are the Amazon links shown below the price comparison on some product pages, outside the comparison, and each says so beside it.

Commission will play no part in what we list, how it ranks, or which link we send you to. The Buy button points at the lowest price we have recorded even when that retailer pays us nothing.