Protein

Whey Protein Isolate

Whey protein isolate. 26 g of protein in a 30 g serving, five ingredients.

Whey protein isolate. 26 g of protein in a 30 g serving, five ingredients.

Whey protein isolate. 26 g of protein in a 30 g serving, five ingredients.

5,0/5 7 ratings, 14 reviews
Worek Whey Protein Isolate 900 g, smak wanilia

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Choose a flavour

Ground Bourbon vanilla pod 1%, sweetened with steviol glycosides.

900 gpack
30 servingsof 30 g, which is 1.5 scoops
26 g of proteinper serving
111 kcalper serving
900 gpack
30 servingsof 30 g, which is 1.5 scoops
26 g of proteinper serving
112 kcalper serving
900 gpack
30 servingsof 30 g, which is 1.5 scoops
26 g of proteinper serving
109 kcalper serving
219 zł7,30 zł per serving over 30 servings

In stock, shipped by 14:00 on business days. Free delivery from 290 zł, below that InPost or DPD, with the cost shown at checkout before you pay.

A food supplement complements your diet. It does not replace varied nutrition or a healthy lifestyle.

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Is this for you?

See whether Whey Protein Isolate fits your training.

A few questions about your training and diet. You see the result right away, without giving an email: whether this product makes sense in your plan, in what serving and when to take it.

Check in the survey

Why this product

A flavour built on five ingredients.

We chose an isolate and a short recipe: protein, flavouring, a flavour ingredient, salt and stevia. Below are three decisions you can see on the label.

Five ingredients

Vanilla: isolate, flavouring, ground Bourbon vanilla pod, salt, steviol glycosides. No colourings and no sugar.

Chocolate: isolate, flavouring, reduced-fat cocoa, salt, steviol glycosides. No colourings and no sugar.

Strawberry: isolate, freeze-dried strawberry 3.3%, flavourings, salt, steviol glycosides. No colourings and no sugar.

Worek Whey Protein Isolate 900 g, smak wanilia

26 g of protein in a 30 g serving

100 g of the finished product holds 88 g of protein. The share of isolate in the recipe, 95.5%, is a different number: it describes the raw material, not the protein in the powder.

100 g of the finished product holds 87 g of protein. The share of isolate in the recipe, 94.5%, is a different number: it describes the raw material, not the protein in the powder.

100 g of the finished product holds 86 g of protein. The share of isolate in the recipe, 93.5%, is a different number: it describes the raw material, not the protein in the powder.

A 20 g scoop, the serving is 1.5 scoops

The most common mistake is one scoop, which gives about 17 g of protein instead of 26 g. A 900 g bag makes 30 servings.

When you top up protein

Whey Protein Isolate

Whey protein isolate

Opakowanie Whey Protein Isolate
How much30 g of powder

Measure out the serving. Check the number of scoops on your own pack.

WhenWhen you need it

After training or to top up a meal.

How250 to 300 ml of liquid

Mix with water or milk. Shake for 10 to 15 seconds.

In practice

You do not have to drink the shake right after training. The amount of protein across the day matters more.

The product contains milk ingredients. Allow for allergies and for how you tolerate the liquid you use.

Worth knowing

How many scoops is that?

Measure out 30 g. How many scoops that is, check the marking on the scoop in your pack.

Water or milk?

Both work. With milk the serving has more calories and protein. Pick what you tolerate well.

How many servings a day?

As many as your food is short of, within the product instructions. For some people one serving is enough, and some do not need the supplement at all.More in the guide (in Polish): Ile białka dziennie? Rachunek z jedzenia i odżywki

Do I have to get the serving in right after training?

No. The first 30 minutes after training change nothing here. What counts is the daily amount of protein and how you spread it across meals.More in the guide (in Polish): Okno anaboliczne: czy trzeba pić białko zaraz po treningu?

Can I add it to porridge?

Yes, to porridge, yoghurt or a smoothie. Count that serving towards your daily protein.More in the guide (in Polish): Ile białka dziennie? Rachunek z jedzenia i odżywki

Should I drink a shake on days without training?

If your food is short of protein. A training day alone does not settle it.

How much protein do I need a day?

The 2017 ISSN position stand gives 1.4 to 2.0 g per kilogram of body mass a day for people who train. The higher range, 2.3 to 3.1 g/kg, applies to a cut and to fat-free mass. You count protein from food and from the supplement together.More in the guide (in Polish): Ile białka dziennie? Rachunek z jedzenia i odżywki

I am lactose intolerant. Can I drink the isolate?

The isolate has less lactose than a concentrate, but it is not lactose free. Check the label of your flavour. With an allergy to milk proteins the product is not suitable.More in the guide (in Polish): Czy potrzebuję odżywki białkowej? WPI kontra WPC, smak i laktoza

Based on materials prepared by an Olympic dietitian.
Edited by ATHLECOR.

Sources and how current these instructions are
Tested product batch: AC-2.2A-2602-01.Servings follow the product label and the shop page. If they differ, the label on your pack applies.
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Does this product fit you?

Answer questions about your training, diet and body mass. See whether the product fits your needs and how to place it in your plan.

You see the result without buying and without giving an email.

Check in the survey

We are on the other side.

Something unclear?

Write which product you have and what you want to ask. We answer on WhatsApp and by email.

Ingredients without guesswork

Check your serving.

Data for the selected variant. Each table states its basis: a serving or 100 g.

Nutrition facts

Basisper 100 gper 30 g serving
Energy370 kcal111 kcal
Fat1,1 g0,3 g
of which saturates0,3 g0,1 g
Carbohydrates2,9 g0,9 g
of which sugars0,9 g0,3 g
Protein88 g26 g
Salt0,50 g0,15 g
Leucine9,5 g2,9 g

Table from the label of the vanilla variant. A 30 g serving is 1.5 scoops (the scoop holds 20 g).

Basisper 100 gper 30 g serving
Energy372 kcal112 kcal
Fat1,1 g0,3 g
of which saturates0,4 g0,1 g
Carbohydrates3,0 g0,9 g
of which sugars1,1 g0,3 g
Protein87 g26 g
Salt0,50 g0,15 g
Leucine9,4 g2,8 g

Table from the label of the chocolate variant. A 30 g serving is 1.5 scoops (the scoop holds 20 g).

Basisper 100 gper 30 g serving
Energy363 kcal109 kcal
Fat1,1 g0,3 g
of which saturates0,3 g0,1 g
Carbohydrates2,8 g0,8 g
of which sugars0,8 g0,3 g
Protein86 g26 g
Salt0,50 g0,15 g
Leucine9,4 g2,8 g

Table from the label of the strawberry variant. A 30 g serving is 1.5 scoops (the scoop holds 20 g).

Full ingredient list and allergens

Vanilla:whey protein isolate (from milk) 95.5%, flavouring, ground Bourbon vanilla pod 1%, salt, steviol glycosides

Allergens: contains milk. Label: the product may contain soy, peanuts, gluten-containing cereals and eggs.

Chocolate:whey protein isolate (from milk) 94.5%, flavouring, reduced-fat cocoa, salt, steviol glycosides

Allergens: contains milk. Label: the product may contain soy, peanuts, gluten-containing cereals and eggs.

Strawberry:whey protein isolate (from milk) 93.5%, freeze-dried strawberry 3.3%, flavourings, salt, steviol glycosides

Allergens: contains milk. Label: the product may contain soy, peanuts, gluten-containing cereals and eggs.

Sources
  • Jäger R. et al., 2017, the International Society of Sports Nutrition position stand on protein in the diet of people who train.International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition 14:20. DOI
  • Helms E. et al., 2014, a review of protein during a cut in trained people (2.3 to 3.1 g per kg of fat-free mass).A Systematic Review of Dietary Protein During Caloric Restriction in Resistance Trained Lean Athletes: A Case for Higher Intakes. International Journal of Sport Nutrition and Exercise Metabolism 24:127. DOI
  • Morton R. et al., 2018, a meta-analysis of 49 studies (1863 people) on protein supplementation and resistance training.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 52:376. DOI

The links lead to the publication records (DOI or PubMed).

A document you can open

Batch testing.
A defined scope.

Skan sprawozdania 357249/26/GDY
Skan sprawozdania 357248/26/GDY
Skan sprawozdania 357250/26/GDY

Report by J.S. Hamilton Poland (accredited laboratory, AB 079) no.357249/26/GDY, batchAC-2.2B-2602-01, variant: vanilla. Produced 12.03.2026, best before 12.03.2028.

Report by J.S. Hamilton Poland (accredited laboratory, AB 079) no.357248/26/GDY, batchAC-2.2A-2602-01, variant: chocolate. Produced 11.03.2026, best before 11.03.2028.

Report by J.S. Hamilton Poland (accredited laboratory, AB 079) no.357250/26/GDY, batchAC-2.2C-2602-01, variant: strawberry. Produced 12.03.2026, best before 12.03.2028.

What was tested?

Scope: yeasts and moulds, Salmonella, coagulase-positive staphylococci, Escherichia coli, Listeria monocytogenes, and lead, arsenic, cadmium and mercury against Regulation (EU) 2023/915. Metals: within the criterion; micro-organisms below the limits of quantification. The report does not test how well the product works.

What this report does not prove

It is not a study of how well supplementation works, nor an anti-doping certificate. It describes the tested sample from the stated batch.

Thumbnail: page 1 of 2. Compare the batch number with your pack. Tap to open the scan enlarged.

How the formula is built and who decides about it

What customers say

How does it work day to day?

5,0/5 7 ratings, 14 reviews

Reviews in the authors' own wording, written in Polish. The average comes from reviews with a rating. Only reviews linked to an order in the shop carry the „verified purchase” mark.

25.06.2026

Skład odżywek jak zawsze pierwsza klasa. Zdecydowanie polecam smak czekoladowy który jest najlepszym białkiem ze wszystkich dostępnych na rynku :)

Sebastian · zakup potwierdzony

18.06.2026

Bardzo polecam ! Produkty najwyższej jakości z czystym składem a dodatkowo bardzo smaczne, bez obciążania i bólu brzucha jak w pozostałych odżywkach białkowych.

Magda · zakup potwierdzony

03.06.2026

Białko bardzo fajne, zero problemów jelitowych jak na razie.

Łukasz Zdanowski

28.05.2026

Szkoda, że dopiero teraz znalazłam te białka. Mają faktycznie tylko najważniejsze składniki (doliczyłam się pięciu) a smakują super. Piję na mleku owsianym lub krowim bez laktozy. Najbardziej mi odpowiada truskawka, ma takie małe kawałki liofilizowanych owoców.

Weronika D

21.05.2026

Smak waniliowy jest mega. Polecam w szczegolnosci na mleku

Anna Niewiadomska

21.05.2026

WPI truskawkowe swietne sprawdza sie do fit deserow

Jadwiga Brożek

Show all reviews (14)
21.05.2026

Smak czekoladowy zrobiony na mleku smakuje jak kakao znanej firmy.

Ania

02.05.2026

Białko kupuję dość regularnie, więc mam już za sobą sporo różnych produktów. Tutaj na plus przede wszystkim skład: krótki i bez zbędnych rzeczy. Nie przepadam za odżywkami, które mają pół etykiety różnych dodatków, a tutaj jest naprawdę prosto. Smak też bardzo fajny. Mam wanilię i jest delikatna, nie wali sztucznym aromatem i nie jest przesadnie słodka. Dzięki temu spokojnie można pić codziennie i się nie nudzi. Z wodą rozpuszcza się bez problemu, a z mlekiem jest pyszna.

Adam Marciniak

12.04.2026

Białko piję praktycznie codziennie, szczególnie po treningach, kiedy nie mam czasu od razu zrobić normalnego posiłku. Tutaj najbardziej przekonał mnie skład – jest krótki i nie ma całej listy dodatków, których i tak nie potrzebuję. Mam wanilię i bardzo dobrze smakuje zarówno z wodą, jak i z mlekiem. Nie jest przesadnie słodkie i nie mam po nim tego uczucia ciężkości, które zdarzało mi się mieć po innych odżywkach. 26 g białka w porcji też jest dla mnie akurat. Jedyny minus to miarka – ma 20 g, a porcja to 30 g, więc trzeba pamiętać o tej dodatkowej połowie.

Filip S.

Boże, jak ja dziękuję za to białko. Pierwsze które mi smakuje <3 Nie ma tego sztucznego smaku. Meeega

Sonia

Bardzo dobre białko, szczególnie jeśli ktoś nie lubi przesłodzonych odżywek.

Karolina W.

Truskawka bardzo fajna, szczególnie do owsianki, bo w szejku te kawałki średnio się rozpuszczają.

Fit-fit-fit

Po innych białkach czasem miałem ciężko na żołądku, tutaj tego problemu nie mam.

Maja

Cena nie jest najniższa, ale przy takim składzie i jakości dla mnie jest OK.

Szymon

Good to know before buying

Have a question?

Answers useful before buying and while using the product.

WPI is whey protein isolate, WPC is a concentrate. An isolate usually holds a higher share of protein and less lactose and fat. Compare the table for the specific flavour: the share of raw material in the recipe is not the same as the percentage of protein in the finished product.More in the guide (in Polish): Czy potrzebuję odżywki białkowej? WPI kontra WPC, smak i laktoza

No. The supplement makes it easier to top up protein, but eggs, fish, meat, dairy and pulses also deliver other nutrients. You choose WPI for convenience, not as a replacement for the whole value of food.More in the guide (in Polish): Ile białka dziennie? Rachunek z jedzenia i odżywki

Chocolate contains reduced-fat cocoa. Vanilla goes well with porridge and yoghurt. Strawberry contains freeze-dried fruit. Pick the flavour you like and check the nutrition table for that variant.More in the guide (in Polish): Czy potrzebuję odżywki białkowej? WPI kontra WPC, smak i laktoza

WPI gives no immediate effect once you drink it. It helps deliver protein when your menu is short of it. Changes in strength and muscle mass also depend on training, energy in the diet, rest and time, and we do not promise a particular number of weeks.More in the guide (in Polish): Okno anaboliczne: czy trzeba pić białko zaraz po treningu?

A serving holds 0.3 g of sugars (chocolate), so there is little lactose. The product contains milk, so it is not suitable with an allergy to milk proteins.

Yes, 250 to 300 ml of water or milk. With milk the serving has more calories and protein than the table shows.

30 servings of 30 g. The scoop in the pack holds 20 g, so a serving is 1.5 scoops.

Yes. You can buy every product on its own, without a bundle and without the survey. A bundle is the easier choice when you want the timings written out and the whole plan in one basket.

Amounts and servings come from the product label. Statements about what the ingredients do rest on the list of claims authorised in the European Union, and sports schedules on the publications named next to the sentence. The batch test report covers the tested sample, not how well the product works.

More answers:Knowledge base · How the matching works

In a bundle: 8-Week System, 486 zł
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