What’s inside this formula?
Klean Athlete’s Klean Isolate — Unflavored is listed here in the whey protein collection. This article looks at the selected 446 g powder · US label pack, then puts its ingredients into context.
Each label serving supplies 20 g protein, 85 calories and 1 g carbohydrate. The two listed ingredients are milk-derived whey protein isolate and sunflower lecithin.
Check the original label ↗Whey is a milk-derived protein used to help meet dietary protein needs. It provides essential amino acids and is often convenient after exercise or when meals fall short. Its usefulness depends on total food intake and training, while isolate, concentrate and flavoured blends differ in lactose, ingredients and protein concentration.
The pack details above come from the manufacturer. Ingredient research below does not establish the effects of this exact product or independently verify its contents.
Isolate and its supporting ingredient
The complete listed formula is whey protein isolate from milk plus sunflower lecithin. A scoop is approximately 22.3 g, with 20 g protein, 1 g sugars, 20 mg calcium, 30 mg sodium and 125 mg potassium.
Why the flavour matters
The selected 446 g pouch is unsweetened and unflavoured. It is a dairy protein, so an isolate description should not be interpreted as milk-free. Compare the actual protein grams rather than assuming every gram of powder is protein.
An exact pack in the NSF directory
NSF lists this United States product as unflavoured powder in a 446 g pack, with a 22.3 g scoop and 20 g protein. Match its lot list before transferring that reference to a seller's pouch.
Look at the testing record.
These external records have a defined scope. Match the formula, market and batch before relying on a result.
NSF Certified for Sport product listing ↗
KLEAN ISOLATE; United States; unflavoured; 446 g; 22.3 g scoop. Listed lots include 25195-1C2, 25044-1C2 and 24302-3C2.
The registry identifies specific US packs and listed lots. Match the bottle's lot and current label; this is not proof of Indian seller authenticity or suitability for every person.
Where might it be useful?
Protein intake
Whey can add dietary protein when meals do not provide enough.
Training support
Adequate protein together with resistance exercise supports muscle repair and adaptation.
What the research can — and cannot — tell us
Protein research supports meeting an appropriate total intake, not the idea that every branded powder produces extra muscle by itself. Compare protein grams per serving, complete ingredients and the amount of powder needed. Training, overall energy intake and consistency remain central to the outcome.
What deserves your attention?
Contains milk. This profile covers the 446 g unflavoured US formula; flavoured versions have different ingredient panels.
Suitability comes before strength
Whey is unsuitable for milk allergy. Lactose tolerance varies by formulation, and people with kidney disease or a prescribed protein restriction should discuss their protein plan with a clinician.
Dietary details for this product
Animal-derived The formula expressly contains whey protein isolate from milk. Vegetarian processing status is not established by the reviewed page.
A dietary label and an allergy assessment answer different questions. Check every ingredient, the capsule or softgel materials and the allergen statement on the pack you receive. If you take medicines, have a health condition, are pregnant or are choosing for a child, discuss the full formula with a qualified clinician.
Make the comparison meaningful.
- Match the exact version.Look for Klean Athlete · Klean Isolate — Unflavored and the 446 g powder · US label pack. A similar name or bottle can contain a different strength, blend or serving.
- Compare like with like.Read the serving size alongside the active ingredient amount. Capsule count, compound weight and total blend weight can describe different things. Use the label notes above to see what matters for this formula.
- Check the seller and final cost.Review seller identity, expiry, batch details and any Indian import information. Compare the final delivered price only after matching the formula. Prices and stock are checked on the retailer’s site.
Keep the label beside the decision.
Open the complete product profile for its source, dietary notes and available shopping destination.
Is this an endorsement or a medical recommendation?
No. This is an editorial guide to a selected product and its ingredient context. We have not independently tested this bottle or established a clinical benefit for this exact formula. A product’s inclusion is not a recommendation that everyone should take it.
Does Proof & Price earn from shopping links?
Some product-profile links are paid links and are labelled. As an Amazon Associate we earn from qualifying purchases. Manufacturer source links are provided for checking the label. Read our affiliate disclosure.
Read, check, decide.
Product label reviewed 2026-11-01. Ingredient context reviewed 2026-10-26. This article has not received independent clinical review. Packaging and formulas can change; the current pack takes precedence.
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