Our protein pick
Thorne Whey Protein Isolate
NSF-listed vanilla whey isolate at about $2.17 a scoop
$65
Compare with this one →Protein
MomentousWhey Protein Isolate
NSF-listed chocolate whey isolate with 20 g protein, about $2.80 a serving
Source-based analysis, not hands-on testing. Our method
Cofounder of Superhuman Chambers · About the author. General information, not medical advice. No independent clinical review is claimed.
The verdict
Momentous Whey Protein Isolate gives 20 g of protein a scoop, and Momentous says every batch is NSF Certified for Sport. The catch is price: a one-time 25-serving Chocolate jar is $69.99, about $2.80 a serving. Returns are unclear too, since the refund policy generally refuses delivered products despite a 30-day money-back guarantee on the page.
The trade-off
It costs about $0.14 per gram of protein at the one-time price, and the refund policy generally refuses returns.
Model reviewed: Chocolate, 25-serving jar, 20 g protein per serving
$69.99
Check price at Momentous US price, checked
No affiliate commission on this link. Check the exact variant before buying.
About this price
One-time price for the Chocolate 25-serving jar on the product page on Oct 13, 2026, before tax and shipping. Momentous's online store shows no sale price or crossed-out regular price. The one-time price works out to about $2.80 a serving. Subscribe takes 25% off the first delivery ($52.49) and 10% off later ones ($62.99), with delivery every 1, 2 or 3 months. The page's "$2.09/serving" is close to the first Subscribe price ($52.49 / 25 = $2.10), so it isn't used here. US shipping is free only over $99. Momentous's online store listed the Chocolate jar as available, though the purchase box also showed "Estimated to be back in stock: Soon."
A GOOD FIT FOR
A drug-tested athlete who wants a batch-certified chocolate whey isolate and doesn't mind paying for it.
- You're a drug-tested athlete and want a whey isolate that Momentous says is NSF Certified for Sport batch by batch
- You want 20 g of protein a scoop from a seven-ingredient chocolate whey isolate sweetened with monk fruit and stevia
THINK TWICE IF
- Anyone with a milk allergy, since whey is a milk protein
- You shop on cost per gram of protein: it's about $0.14 a gram at the one-time price
- You want a clear right to send back an opened jar: the refund policy generally refuses returns, and the money-back guarantee has no published terms
What still needs checking
- Sodium per serving
- Whether NSF's Essential Grass Fed-Whey Chocolate listing covers the current Chocolate jar's formula
- The terms of the 30-day money-back guarantee, and how it fits with the refund policy
- Whether the "back in stock" notice in the purchase box applies to the Chocolate jar
The practical details.
| Exact variant | Chocolate, 25-serving jar, 20 g protein per serving |
|---|---|
| Protein per serving | 20 g |
| Servings per container | 25 |
| Nutrition per scoop (NSF listing) | 26.2 g scoop: 90 calories, 20 g protein, 2 g carbohydrate, under 1 g sugar, 1.5 g fat |
| Cost per serving | About $2.80 at the $69.99 one-time price, or about $0.14 per gram of protein. The page's "$2.09/serving" is close to the first Subscribe price ($52.49 / 25 = $2.10) |
| Ingredients (Chocolate) | Grass-fed whey protein isolate, ProHydrolase, natural flavors, cocoa, salt, monk fruit extract, stevia |
| Directions | 1 scoop in 10 to 12 fl oz of liquid, as needed |
| Certification | Momentous says every finished batch is NSF Certified for Sport. NSF lists "Essential Grass Fed-Whey Protein Chocolate" by Momentous (listing 1410573) for all lots |
| Subscribe plan | Delivery every 1, 2 or 3 months. 25% off the first delivery ($52.49), then 10% off later deliveries ($62.99) |
| Guarantee | "30 day money back guarantee" on the product page, with no published terms |
| Flavors and sizes | Momentous's online store lists this jar in Chocolate, Vanilla, Unflavored and Strawberry, all at $69.99. The flavor menu shows eight flavors, some only in certain sizes. A 12-serving jar and 10 travel packs appear in the image gallery without prices |
| Dimensions | The jar holds 25 servings. Momentous's page text doesn't give the net weight or jar dimensions. NSF's listing for the Chocolate powder gives a 26.2 g scoop and package sizes of 26.2 g, 262 g and 655 g. The 655 g size works out to 25 scoops. |
| Materials | Momentous lists the Chocolate flavor's ingredients as grass-fed whey protein isolate, ProHydrolase, natural flavors, cocoa, salt, monk fruit extract and stevia. Momentous calls ProHydrolase an enzyme. It says the whey comes from European cows that are pasture-raised, grass-fed and not treated with hormones such as rBST. Whey is a milk protein. The page doesn't say what the jar is made of. |
Before you buy
InstallationNothing to install
Nothing to install. Momentous says to mix 1 scoop with 10 to 12 fluid ounces of liquid, as needed.
WarrantyMomentous doesn't state a warranty
Momentous doesn't state a warranty. The product page advertises a "30 day money back guarantee" but doesn't give its terms, and the refund policy doesn't mention it.
ReturnsThe store's refund policy says Momentous generally doesn't accept returns…
The store's refund policy says Momentous generally doesn't accept returns of delivered products, except where applicable law requires it. The reason given is that it can no longer guarantee how they were stored. Original and return shipping aren't refundable unless the law requires otherwise. The policy says it doesn't limit your rights under consumer protection laws. You generally have at least 60 minutes after ordering to make changes. If you bought from a retailer, returns go back to that retailer. The policy doesn't mention the 30-day money-back guarantee shown on the product page.
More about this assessment
Momentous Whey Protein Isolate is a grass-fed whey isolate powder with 20 g of protein a scoop, sweetened with monk fruit extract and stevia. Momentous says every finished batch is NSF Certified for Sport. NSF's all-lots listing uses the name "Essential Grass Fed-Whey Protein Chocolate," which Momentous's page doesn't use. The catch is price: a one-time Chocolate jar is $69.99, about $2.80 a serving. Refills at one scoop a day come to $1,021.85 a year. Returns are unclear too, since the page advertises a 30-day money-back guarantee but the refund policy says delivered products generally can't be returned.
Strengths on paper
- Momentous says every finished batch is certified through NSF Certified for Sport
- NSF lists Essential Grass Fed-Whey Protein Chocolate by Momentous for all lots
- 20 g of protein a serving from whey isolate
- Seven listed ingredients in the Chocolate flavor, and Momentous says no gums or artificial sweeteners
- Subscribe cuts the first jar to $52.49 and later jars to $62.99
Limitations
- About $2.80 a serving at the $69.99 one-time price, or about $0.14 per gram of protein
- The page's "$2.09/serving" is close to the first Subscribe price, not the one-time price
- The refund policy says delivered products generally can't be returned, and the page's 30-day money-back guarantee has no published terms
- NSF's listing uses the Essential Grass Fed-Whey name, which Momentous's page doesn't mention
- NSF also lists a Momentous "Whey Protein Isolate – Chocolate Fudge Flavor" for one lot only. Its 342 g package and 28.5 g scoop come to 12 servings, so it isn't the 25-serving Chocolate jar
What it costs to own.
Adjust the assumptions for your use. Missing costs stay unknown.
PLAN YOUR OWNERSHIP COSTS
What will it cost to own?
Change the assumptions to fit your use. Leave an unknown cost blank. Add water, subscriptions, cleaning, shipping and taxes if they apply. Use average operating power, not the maximum rating.
3-year planning total
$3,135.54Every field has a value. This is an estimate, not a quote.
Energy component: $0.00
Purchase + installation + years × (annual consumables + annual other) + watts/1000 × hours/day × 365 × years × $/kWh. Annualized allowances, not an exact replacement schedule. Excludes taxes, shipping, finance and resale unless entered.Replacement parts & cost assumptions
Recorded recurring parts and refills:
- Momentous Whey Protein Isolate, Chocolate, 25-serving jar: $69.99 every 0.82 months. One jar lasts 25 days (about 0.82 months) at one serving a day. Momentous says to use it "as needed," so one serving a day is an assumption. The cost is the $69.99 one-time price. On Subscribe, the first jar is $52.49 and later jars are $62.99. Tax and shipping aren't included.
- The purchase is the first jar, at the $69.99 one-time price on the product page on Oct 13, 2026.
- Refills assume one scoop (20 g of protein) a day, since Momentous says to use it "as needed." That's 365 servings / 25 per jar x $69.99 = $1,021.85 a year.
- On Subscribe, later jars are $62.99 (10% off), about $919.65 a year. Only the first delivery is 25% off, at $52.49. The estimate uses the one-time price, without tax or shipping.
- Counting the first jar as the purchase plus three full years of refills adds about one jar more than 1,095 daily servings need. If you take it only on training days, you'll spend less.
Evidence & sources.
Do creatine, fish oil, vitamin D and magnesium work? Our evidence review grades the research as Mixed. That grade is about the claim, not about this product.
- CertificationNSF's Certified for Sport database lists "Essential Grass Fed-Whey Protein Chocolate" by Momentous (listing 1410573) for all lots. It gives a 1-scoop (26.2 g) serving with 90 calories and 20 g of protein. Momentous's results also list Vanilla and Unflavored versions under that name. They list six whey isolates under the "Whey Protein Isolate" name, including a Chocolate Fudge flavor (listing 1786256). That entry gives a 342 g package, a 28.5 g scoop with 90 calories and 20 g of protein, and a single lot, 412-0070.135 Momentous's page doesn't use the Essential name. The match to listing 1410573 rests on the brand, the flavor, the store's "essential-whey-protein" address and the 655 g size (25 scoops of 26.2 g). The Chocolate Fudge entry doesn't fit the reviewed jar: 342 g is 12 scoops of 28.5 g, and the page's flavor menu has no Chocolate Fudge. A sport certification is about what's in the jar, not its health effects.
- Manufacturer claimMomentous says every finished batch is certified through NSF Certified for Sport. It says the program verifies label accuracy and screens for banned substances, and that a batch that fails doesn't ship.1 These are Momentous's own statements. It also says Certificates of Analysis are available for every batch and that third-party results are published through Light Labs. This review didn't open those reports.
Sources (5)
- Grass-Fed Whey Protein Isolate Powder (Whey Protein Isolate) Momentous · manufacturer · checked Oct 13, 2026
- Certified for Sport listing: Essential Grass Fed-Whey Protein Chocolate (Momentous) NSF · certifier · checked Oct 13, 2026
- Certified Products Results: Momentous NSF · certifier · checked Oct 13, 2026
- Refund policy Momentous · manufacturer · checked Oct 13, 2026
- Certified for Sport listing: Whey Protein Isolate – Chocolate Fudge Flavor (Momentous) NSF · certifier · checked Oct 13, 2026
Other options.
Back to our third-party-tested supplements picks →About this review. The facts on this page come from manufacturer pages and certification listings, checked Oct 13, 2026. The sources are listed above.
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