DeliveredDose

What is the cheapest NSF certified plant protein?

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

Bare Performance Nutrition Vegan Protein, Chocolate (891 g) is the cheapest per 25g, at $2.31 before delivery, at $49.99 a container.

9 of the 21 plant protein products we track have their exact package named in NSF's Certified for Sport database. That is a stricter test than “the brand is NSF certified”, and it is deliberately so: NSF lists package sizes against each certificate, and a size it does not name is not one it has stood behind. Each price is delivered where the retailer publishes a delivery rate and before delivery where it does not, and each row says which. 2 more plant protein packages, from Optimum Nutrition, are certified by Informed Choice or Informed Sport, whose listings record tested batches and no package size at all, so they cannot be ranked by the exact-package test this page applies. Every brand, by program: Which plant protein brands are third-party tested?

ProductPer 25gContainerDelivery
Bare Performance Nutrition Vegan Protein, Chocolate (891 g) buy$2.31
before delivery
$49.99not published
Bare Performance Nutrition Vegan Protein, Vanilla (791 g) buy$2.31
before delivery
$49.99not published
Bare Performance Nutrition Vegan Protein, Oatmeal Cookie (772 g) buy$2.31
before delivery
$49.99not published
Bare Performance Nutrition Vegan Protein, Peanut Butter (891 g) buy$2.31
before delivery
$49.99not published
Thorne Plant Protein, Chocolate (676 g) buy$2.78
delivered
$49.00free
Thorne Plant Protein, Vanilla (630 g) buy$2.78
delivered
$49.00free
Momentous 100% Plant Protein, Chocolate (22 servings) buy$2.84
before delivery
$49.99not published
Momentous 100% Plant Protein, Vanilla Spice (673 g) buy$2.84
before delivery
$49.99not published

Named at the exact package, but not priced per 25g

Listed, but at another package

NSF lists these products, and the listing names a package other than the one we price. Very likely the same formula; not a package NSF has put its name to.

Cheapest among the 9 certified plant protein packages we have checked, not the cheapest that exists. NSF certifies plant protein from more brands than we carry, and our catalog is extended brand by brand, so a certified product we have not added yet cannot appear here however cheap it is.

Every brand in this category, by program: Which plant protein brands are third-party tested? What is the cheapest plant protein powder? Plant protein vs whey protein: which costs less per 25 g of protein? What is the cheapest NSF certified whey protein?

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.