Cheapest protein powder in our comparison, October 2026

Of the 7 products we follow at 4 shops, Body & Fit Whey Perfection was the cheapest per 100 g on 17 October 2026: €3.45 / 100 g. The most expensive costs €6.66 / 100 g, 1.9 times as much. Prices are fetched again every morning. Shops whose prices we can't read, such as XXL Nutrition, aren't included.

#ProductPrice per 100 gFromScoreMost common complaint
1Whey Perfection
Body & Fit · Body & Fit
€3.45 / 100 g€34.996.5Many regular buyers find the new version less tasty and more chemical.
2Smart Protein
Body & Fit · Body & Fit
€3.60 / 100 g€35.996.8Many buyers find the shake sickly sweet or artificial tasting.
3Impact Whey Protein
Myprotein · Myprotein
€3.67 / 100 g€12.997.1Some buyers find specials like cinnamon danish chemical or nasty.
4Whey Protein (1000 g)
Bodylab · Bodylab
€3.79 / 100 g€37.905.6Many buyers find some flavours artificial, chemical or far too sweet.
5Clear Whey Isolate
Myprotein · Myprotein
€3.93 / 100 g€20.496.5Many buyers get clumps or sticky residue, even after long shaking.
6Gold Standard 100% Whey
Optimum Nutrition · Optimum Nutrition
€4.74 / 100 g€28.997.5Some flavours disappoint: cookies and cream, strawberry, hazelnut, peanut butter.
7Gold Standard 100% Isolate
Optimum Nutrition · Optimum Nutrition
€6.66 / 100 g€29.998.3Some find the chocolate flavour too bland, artificial or odd.

Prices on 17 October 2026, incl. VAT, excl. shipping. Cheap isn't always the best choice: read what buyers name as downsides too. 13 other products have no comparable price per 100 g and are on the category page.

6.5
Body & Fit · Protein

Whey Perfection

from €34.99 · €3.45 / 100 g
  • Many buyers find the taste nice and creamy, especially vanilla and chocolate. 106×
  • Many regular buyers find the new version less tasty and more chemical. 29×
★4.7 shop · 4,071
6.8
Body & Fit · Protein

Smart Protein

from €35.99 · €3.60 / 100 g
  • Many buyers find the taste nice and milkshake-like, especially white chocolate and banana. 97×
  • Many buyers find the shake sickly sweet or artificial tasting. 24×
Almost no 1–2 stars★4.7 shop · 1,112
7.1
Myprotein · Protein

Impact Whey Protein

from €12.99 · €3.67 / 100 g
  • Classic flavours like vanilla, chocolate brownie, strawberry and blueberry go down well. 16×
  • Some buyers find specials like cinnamon danish chemical or nasty. 23×
Few reviews★4.3 shop · 665
5.6
Bodylab · Protein

Whey Protein (1000 g)

from €37.90 · €3.79 / 100 g
  • Many reviewers find the flavours tasty and creamy, especially vanilla, chocolate and banana. 78×
  • Many buyers find some flavours artificial, chemical or far too sweet. 59×
Shop shows a 'was' price★4.6 shop · 13,921
6.5
Myprotein · Protein

Clear Whey Isolate

from €20.49 · €3.93 / 100 g
  • Many reviewers find flavours like iced tea, peach and raspberry fresh and nice. 21×
  • Many buyers get clumps or sticky residue, even after long shaking. 21×
Few reviews★4.3 shop · 215
7.5
Optimum Nutrition · Protein

Gold Standard 100% Whey

from €28.99 · €4.74 / 100 g
  • Many buyers like the taste, especially chocolate and vanilla ice cream. 77×
  • Some flavours disappoint: cookies and cream, strawberry, hazelnut, peanut butter. 15×
★4.9 shop · 2,257

Frequently asked questions

What is the cheapest protein powder?

In our comparison on 17 October 2026: Body & Fit Whey Perfection, €3.45 / 100 g at Body & Fit. We follow 7 products at 4 shops; other shops may be cheaper. This page updates every morning.

What is the cheapest protein powder with a good score?

Of the products with a Supplist score of 7.5 or more, Optimum Nutrition Gold Standard 100% Whey is the cheapest per 100 g: €4.74 / 100 g, score 7.5.

Why compare per 100 g?

Tubs and bags differ in size. Per 100 g shows what you really pay; a big pack is often cheaper per gram.

Is shipping extra?

Often, up to a minimum order. Our Deals page lists the free-shipping threshold per shop.

Also cheap: creatine · fish oil (omega-3) · vitamin D · magnesium · multivitamin