DeliveredDose

Is Thorne plant protein NSF certified?

Our pick: Optimum Nutrition Gold Standard 100% Plant Protein, Rich Chocolate Fudge (1.76 lb), $2.39 per 25g delivered. NSF Certified for Sport does not list this package; it qualifies because Informed Choice lists it.
Buy at Optimum Nutrition (direct)why this one

Yes, for every Thorne product we track in this category. NSF lists a specific package against each certificate, and a certificate is what NSF actually stands behind, so a package the listing does not name is treated as unconfirmed rather than certified. Every row below was read against NSF's own listing, and the listing ID is shown.

NSF lists this line flavor by flavor, and both tubs we price are named at their exact weight.

ProductPackageNamed by an NSF listing?Certificate
Plant Protein, Chocolate (676 g) buy20 servingsYes1751547
Plant Protein, Vanilla (630 g) buy20 servingsYes1751559

What the listings say

Thorne holds 2 Certified for Sport listings covering the products in this table (1751547, 1751559). NSF records some brands under more than one spelling, so a search on the brand name alone can miss a listing; ours are found from a full read of the directory, then opened one by one.

What each product page shows

Listing 1751547 "Thorne® Plant Protein (Chocolate Flavored)" prints Package Size "676 g" with Serving Size "2 scoops (33.8 g)", Flavor Chocolate, Free of Claims Gluten, four lot numbers, and Protein 22 g, Carbohydrate 5 g, Fat 4 g, Calories 140 Cal. The tub priced here prints "NET WT. 23.8 OZ (1.49 LB) 676 G" on its front face and "Serving Size: Two Scoops (33.8 g)" with "Servings Per Container: About 20" on its panel, and its panel figures are the listing's. The listing names the weight on the label and the serving on the label, so it names the package sold. The tub's side face prints the NSF Certified for Sport mark, which is recorded as the maker's claim on the product.
Listing 1751559 "Thorne® Plant Protein (Vanilla Flavored)" prints Package Size "630 g" with Serving Size "2 scoops (31.5 g)", Flavor Vanilla, Free of Claims Gluten, four lot numbers, and Protein 22 g, Carbohydrate 4 g, Fat 3.5 g, Calories 130 Cal. The tub priced here prints "NET WT. 22.2 OZ (1.39 LB) 630 G" on its front face and "Serving Size: Two Scoops (31.5 g)" with "Servings Per Container: About 20" on its panel, and its panel figures are the listing's. The listing names the weight on the label and the serving on the label, so it names the package sold. This listing is also why the vanilla flavor is in the catalog at all: the category enters one flavor per line, plus any flavor a Certified for Sport listing names on its own.

Every Thorne product we track, across all categories: Is Thorne third party tested?

Where to buy: the plant protein shortlist

The pick is the cheapest certified product, at the exact package sold where the certifier names packages, with no adverse finding on record, a price its retailer let us read recently, and no more than a year’s supply at the label’s serving; per delivered dose where the retailer publishes a delivery rate. Where none does, it is the cheapest such product before delivery, and it says how far the order is from free delivery. It is the same pick the category page shows. Any answer shown beside it is the cheapest under a different rule and says so on its own line; answers that cost more than the pick fold under one line until you ask for them.

Our pick, delivery included · Cheapest per 25g, delivery known · Cheapest independently tested, delivery known
Optimum Nutrition Gold Standard 100% Plant Protein, Rich Chocolate Fudge (1.76 lb)
$2.39per 25g, delivered$71.84 a month
B · TestedB · Informed ChoiceBuy at Optimum Nutrition (direct) · $39.99
Corrected Oct 2, 2026: until then the pick here was Thorne Plant Protein, Chocolate (676 g). Our record of Optimum Nutrition's own store left out the flat delivery rate its delivery page publishes below its free-delivery threshold, so delivery there counted as unknown and none of its packages could be the pick. With the rate recorded, its delivered cost is known.
Cheapest independently tested, before delivery
Bare Performance Nutrition Vegan Protein, Chocolate (891 g)
$2.31per 25g, before delivery$69.43 a month
Not our pick: delivery cost is not published.
Delivery is extra and not published; free from $99.00.
A · CertifiedA · NSF Certified for SportBuy at Bare Performance Nutrition (direct) · $49.99
Least to spend today
Optimum Nutrition Gold Standard 100% Plant Protein, Rich Chocolate Fudge (1.06 lb)
$2.99per 25g, delivered$89.79 a month
More per 25g, but $11.50 less to spend today, delivered.
B · TestedB · Informed ChoiceBuy at Optimum Nutrition (direct) · $28.49
How these lines are chosen

Among 21 products and 21 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.

More questions like this

Full comparison of every product in this category: Plant Protein. Every question we answer: the question index.

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.