Momentous
Momentous Whey Protein Isolate
NSF-listed chocolate whey isolate with 20 g protein, about $2.80 a serving
$69.99
Compare with this one →Our protein pick
ThorneWhey Protein Isolate
NSF-listed vanilla whey isolate at about $2.17 a scoop
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
Thorne's vanilla Whey Protein Isolate gives about 21 g of protein a scoop, at $65 for 30 servings. It's for drug-tested athletes, since NSF's Certified for Sport database lists it with 23 certified lots. The catch is that calories and sugar (100 calories and 3 g of sugar a scoop) appear only in NSF's listing, and the page carries a Proposition 65 lead warning.
The trade-off
It costs about $2.17 a scoop and contains cane sugar (3 g a scoop, per NSF) and milk-derived protein, while Thorne's page leaves out calories, sugar grams and net weight.
Model reviewed: Vanilla, 30 scoops (SKU SP111)
$65
Check price at Thorne US price, checked
No affiliate commission on this link. Check the exact variant before buying.
About this price
The one-time list price on Thorne's vanilla product page is $65 for 30 scoops, before tax and shipping. That's about $2.17 a scoop. The page showed no sale, crossed-out or subscription price. It links to a Chocolate version but doesn't show that version's price.
A GOOD FIT FOR
A drug-tested athlete who wants a vanilla whey isolate listed in NSF's Certified for Sport database and will check the tub's lot number against NSF's list.
- You're an athlete subject to drug testing and want a whey isolate listed in NSF's Certified for Sport database, with lot numbers you can check against your tub
- You find it hard to reach your protein target from food and want about 21 g of protein in one scoop (100 calories, per NSF's listing)
THINK TWICE IF
- Anyone with a milk allergy, since the protein is derived from milk
- Anyone with a history of hypersensitivity to any of its ingredients, which Thorne lists as a contraindication
- You want an unsweetened or sugar-free powder: this one contains evaporated cane juice sugar and stevia
- You shop on price per gram of protein and don't need a sport certification
- Anyone pregnant who hasn't asked a health-care practitioner first, as Thorne advises
What still needs checking
- Why Thorne's supplement facts list 25 g whey protein isolate when the headline and NSF's listing give 21 g protein
- The 30-scoop container's net weight, and which NSF package size (29.7 g or 906 g) it matches
- How much lead it contains compared with the Proposition 65 threshold
- The Chocolate version's price
- Whether there's a subscription discount
- Who pays return shipping
- Whether opened tubs qualify for a refund
- How the 25% restocking fee applies to satisfaction-guarantee requests
The practical details.
| Exact variant | Vanilla, 30 scoops (SKU SP111) |
|---|---|
| Protein per serving | 21 g protein (page headline and NSF's listing), 25 g whey protein isolate per scoop (Thorne's supplement facts) |
| Servings per container | 30 scoops |
| Other actives per scoop | 94 mg calcium, 75 mg sodium, 30 mg bromelain and papain blend |
| Nutrition per scoop (NSF listing) | 100 calories, 21 g protein, 3 g carbohydrate, 3 g sugar and 0.5 g fat per 1 scoop (27.9 g). Thorne's product page doesn't give these |
| Sweeteners | Evaporated cane juice sugar and rebaudioside A (from stevia). NSF's listing gives 3 g sugar per scoop, which Thorne's page doesn't state |
| Certification | NSF Certified for Sport. NSF's database lists it as Thorne Whey Protein Isolate Vanilla Flavored, a powder with a 1-scoop (27.9 g) serving and 23 certified lots |
| Allergens | Contains a milk-derived ingredient (whey protein isolate). Labeled gluten free and soy free |
| Directions | 1 scoop daily in at least 8 oz of water, juice or another beverage |
| Dimensions | Thorne doesn't state the container's size or net weight. The product page gives only 30 one-scoop servings. NSF's listing gives a 27.9 g serving. It also lists package sizes of 29.7 g and 906 g but doesn't say which one matches the 30-scoop container. At 27.9 g a serving, 30 servings would come to about 837 g, which matches neither. |
| Materials | Whey protein isolate, which is derived from milk, plus a bromelain and papain enzyme blend. The other ingredients are carboxymethylcellulose gum, xanthan gum, vanilla flavor, evaporated cane juice sugar and rebaudioside A (from stevia). Thorne labels it gluten free and soy free. Thorne doesn't say what the container is made of. |
Before you buy
InstallationNothing to install
Nothing to install. Thorne's directions are to mix 1 scoop a day into at least 8 ounces of water, juice or another drink, or to use it as a health-care practitioner recommends.
WarrantyThorne doesn't state a product warranty
Thorne doesn't state a product warranty. Its returns page describes a 60-day satisfaction guarantee (see returns).
ReturnsThorne's returns page says that if you're not satisfied, you can request…
Thorne's returns page says that if you're not satisfied, you can request a return within 60 days of the date of purchase from Thorne. All approved returns carry a 25% restocking fee. A separate answer on the same page describes Thorne's 60-Day Satisfaction Guarantee. If you bought from an authorized reseller, you can return the product there for your money back, a store credit or a replacement. If you bought from Thorne's website or an authorized US seller and couldn't reach a satisfactory resolution with the seller, you can call Customer Service. You can ask for a refund or a product credit, but the request must be made within 60 days of the date of purchase. Thorne generally doesn't refund or exchange product past its expiration date. For an opened product a practitioner won't take back, the page only says to call Customer Service, which will "do our best to accommodate your situation." Customer Service is at 800-228-1966 (Monday to Friday, 8 a.m. to 8 p.m. ET) and support@thorne.com. The page doesn't say who pays return shipping.
More about this assessment
Thorne Whey Protein Isolate is a vanilla whey protein powder with about 21 g of protein a scoop. The 30-scoop container (SKU SP111) lists at $65, about $2.17 a scoop, or $790.83 a year at one scoop a day. NSF's Certified for Sport database lists it with 23 certified lot numbers, which matters if you're drug-tested. The catch is that Thorne's page leaves out calories, sugar and net weight. NSF's listing fills some of the gap: 100 calories and 3 g of sugar a scoop, from evaporated cane juice sugar plus stevia. The page also carries a California Proposition 65 warning about lead.
Strengths on paper
- Listed in NSF's own Certified for Sport database, with 23 certified lot numbers published
- About 21 g of protein a scoop from whey isolate, per Thorne's headline and NSF's listing
- Labeled gluten free and soy free, with a short list of other ingredients
- Needs no power, setup or subscription
Limitations
- About $2.17 a scoop at the one-time list price, or about $0.10 per gram of protein at 21 g a scoop
- Calories, carbohydrate, sugar and fat (100 calories, 3 g carbohydrate, 3 g sugar, 0.5 g fat a scoop) come only from NSF's listing, not Thorne's product page
- Thorne's headline says 21 g protein, but its supplement facts list 25 g whey protein isolate, with no explanation
- Carries a California Proposition 65 warning about lead exposure and reproductive harm, with no lead amount given
- All approved returns carry a 25% restocking fee, and Thorne doesn't say who pays return shipping
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
$2,437.49Every 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:
- Thorne Whey Protein Isolate Vanilla, 30 scoops (SP111): $65 every 0.99 months. One container lasts 30 days (about 0.99 months) at the label dose of 1 scoop a day. It's $65 at the one-time list price, before tax and shipping.
- Annual refills at the label dose of one scoop a day: 365 servings / 30 per container x $65 = $790.83, at the one-time list price. Tax and shipping aren't included. Neither is any subscription discount, since the product page showed no subscription price.
- The first $65 container counts as the purchase, and refills cover three full years. So the three-year estimate includes about one container more than 1,095 daily servings would need. If you take a scoop only on training days, you'd spend proportionally 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 "Thorne Whey Protein Isolate Vanilla Flavored" by Thorne as a vanilla protein powder sold in the United States. The listing has a gluten free claim and 23 certified lot numbers. The serving size is 1 scoop (27.9 g). Package sizes are 29.7 g and 906 g. Per serving, the listing gives 21 g protein, 3 g carbohydrate, 3 g sugar, 0.5 g fat and 100 calories. NSF's Thorne results also list a Chocolate Flavored version.23 Checked in NSF's own database, not just from the mark on Thorne's page. The listing shows no SKU or certification date, and it doesn't describe what the program screens for. You can match the lot number on your tub to the listed lots. A sport certification is about what's in the product, not its health effects.
- Manufacturer claimThorne's product page shows the NSF Certified for Sport mark. According to the page, the mark signifies testing for compliance with label claims and for the absence of nearly 300 substances banned by major athletic organizations. Thorne says it tests each ingredient for identity, purity and potency. It also says its quality checks of ingredients and the finished product include contaminants such as heavy metals, pesticides and harmful microbes. The page carries a California Proposition 65 warning about the risk of reproductive harm from lead exposure. It has the standard statement that its claims haven't been evaluated by the Food and Drug Administration. It lists hypersensitivity to any ingredient as a contraindication and tells pregnant users to consult a health-care practitioner.1 These are Thorne's own statements. The page doesn't publish Thorne's test results, including any lead result.
- Published studyA 2018 meta-analysis pooled 49 randomized controlled trials with 1,863 healthy adults. It found that protein supplementation during at least 6 weeks of resistance training added about 0.30 kg of fat-free mass (95% CI 0.09 to 0.52), compared with resistance training in control groups without the added protein. Against the same controls, protein supplementation also added 2.49 kg of one-repetition-maximum strength (95% CI 0.64 to 4.33). The added fat-free mass gain became smaller with increasing age. Total protein intakes above about 1.6 g per kg of body weight per day gave no further gain in fat-free mass.5 The trials tested protein added to a resistance-training program, not this product. The average effects were modest, and the supplements weren't limited to whey. The findings don't show a benefit without training. Nor do they show added fat-free mass for people whose total protein intake is already above about 1.6 g per kg a day.
Sources (5)
- Whey Protein Isolate - Vanilla (SP111) Thorne · manufacturer · checked Oct 13, 2026
- Certified for Sport listing: Thorne Whey Protein Isolate Vanilla Flavored NSF · certifier · checked Oct 13, 2026
- Certified Products Results: Thorne NSF · certifier · checked Oct 13, 2026
- Returns and Exchanges Thorne · manufacturer · checked Oct 13, 2026
- A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults British Journal of Sports Medicine · study · 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, certification listings and published studies, checked Oct 13, 2026. The sources are listed above.
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