DeliveredDose

What is the cheapest plant protein powder?

BulkSupplements.com Pea Protein Powder (1 kg) is the cheapest plant protein we track at $1.41 per 25 g of protein, before delivery. The most expensive is $8.32, a 5.9× spread for the same amount of protein.

Every figure is per 25 g of protein, computed from each product's own panel: protein per serving, times servings per container, against the price. Scoops are not the same size from one brand to the next, so a price per scoop or per tub compares nothing. Where a line comes in several flavors, one is priced.

Delivery moves this. Some stores here ship free only above a threshold and publish no rate below it, so a cheaper tub on the shelf can cost an unknown amount at checkout. The plant protein page ranks on delivered cost where it is known, which is why it can lead with a different product than this page does.

ProductSourcePer 25 g proteinProtein / servingServingsPriceVerification
BulkSupplements.com Pea Protein Powder (1 kg)Pea Protein Powder$1.4121 g33$38.97D · None located
BulkSupplements.com Organic Pea Protein Powder (1 kg)Organic Pea Protein Powder$1.6221 g33$44.97D · None located
Optimum Nutrition Gold Standard 100% Plant Protein, Rich Chocolate Fudge (1.76 lb)Pea Protein + Fava Bean Protein Isolate + Brown Rice Protein Concentrate$2.0824 g20$39.99B · Tested
Bare Performance Nutrition Vegan Protein, Chocolate (891 g)Pea Protein + Organic Pumpkin Seed Protein + Organic Watermelon Seed Protein$2.3120 g27$49.99A · Certified
Bare Performance Nutrition Vegan Protein, Vanilla (791 g)Pea Protein + Organic Pumpkin Seed Protein + Organic Watermelon Seed Protein$2.3120 g27$49.99A · Certified
Bare Performance Nutrition Vegan Protein, Oatmeal Cookie (772 g)Pea Protein + Organic Pumpkin Seed Protein + Organic Watermelon Seed Protein$2.3120 g27$49.99A · Certified
Bare Performance Nutrition Vegan Protein, Peanut Butter (891 g)Pea Protein + Organic Pumpkin Seed Protein + Organic Watermelon Seed Protein$2.3120 g27$49.99A · Certified
BulkSupplements.com Organic Pea Protein Powder (500 g)Organic Pea Protein Powder$2.3821 g17$33.97D · None located
Optimum Nutrition Gold Standard 100% Plant Protein, Rich Chocolate Fudge (1.06 lb)Pea Protein + Fava Bean Protein Isolate + Brown Rice Protein Concentrate$2.4724 g12$28.49B · Tested
Thorne Plant Protein, Chocolate (676 g)Pea Protein + Chia Seed Protein + Rice Protein$2.7822 g20$49.00A · Certified
Thorne Plant Protein, Vanilla (630 g)Pea Protein + Chia Seed Protein + Rice Protein$2.7822 g20$49.00A · Certified
Momentous 100% Plant Protein, Chocolate (22 servings)PURIS® Pea Protein + Organic Brown Rice Protein$2.8420 g22$49.99A · Certified
Momentous 100% Plant Protein, Vanilla Spice (673 g)PURIS® Pea Protein + Organic Brown Rice Protein$2.8420 g22$49.99A · Certified
EVLution Nutrition Stacked Plant Protein, Natural Chocolate (300 g)Pea Protein Isolate + Rice Protein$3.1220 g10$24.99D · None located
BulkSupplements.com Organic Pea Protein Powder (250 g)Organic Pea Protein Powder$3.7221 g8$24.97D · None located
Momentous 100% Plant Protein, Chocolate, 10-Travel Packs (10 packets)PURIS® Pea Protein + Organic Brown Rice Protein$3.7520 g10$29.99A? · package unconfirmed
BulkSupplements.com Organic Pea Protein Powder (100 g)Organic Pea Protein Powder$8.3221 g3$20.97D · None located

What this table does not tell you

8 of these 17 products are certified at the exact package sold. The rest are not marked as failing anything. Which certifier database each was searched in, and what was found, is on which plant protein brands are third party tested.

It says nothing about protein quality, amino acids, digestion or taste, and it does not compare pea against a blend on anything but price. It is the price of a fixed amount of protein as each label states it, and nothing more.

Products that are out of stock today carry no price and drop out of this ranking; they are still listed on the plant protein page with their label read.

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.