Home / Whey protein (concentrate) / Nutritienda vs Prozis
Head to head · data from
Nutritienda or Prozis for whey protein: which is better value per kg
The short answer. For whey protein, Nutritienda lists 7 products and Prozis another 22. By price per kg, Nutritienda’s median is €39.60/kg and Prozis’s is €55.12/kg. The highest scoring across both catalogues is Scitec Nutrition Whey Infusion from Nutritienda, with 67 out of 100 at €29.95/kg. Neither has products at verification level 4: for whey protein the ceiling today is a lab report published by the brand itself, and that is not a certification.
Both stores measured on the same criterion: price per kg and certification verification level. There is no overall winner because there isn’t one: one can win on price and the other on certification, and here you see both separately.
† Some links are affiliate links — they do not change the ranking
Some store links are affiliate links: if you buy through them, this site may earn a commission at no extra cost to you. It changes nothing in the ranking: the score is computed beforehand and without reading those links, and products with no affiliate programme appear exactly the same. How it is calculated.
Both stores at a glance
7 whey protein products
€39.60/kgmedian
From €29.95/kg to €94.29/kg. 0 at verification level 4 and 0 at level 3.
Its best score: Scitec Nutrition Whey Infusion, 67/100 at €29.95/kg.
22 whey protein products
€55.12/kgmedian
From €30.99/kg to €67.47/kg. 0 at verification level 4 and 0 at level 3.
Its best score: Prozis 100% Whey Prime 1000 g, 66/100 at €30.99/kg.
Nutritienda against Prozis, figure by figure
The same numbers for both
| Figure | Nutritienda | Prozis |
|---|---|---|
| Products compared | 7 | 22 |
| Median per kg | €39.60/kg | €55.12/kg |
| Cheapest per kg | €29.95/kg | €30.99/kg |
| Dearest per kg | €94.29/kg | €67.47/kg |
| Best score | 67 | 66 |
| Level 4 (certification backed by a third party) | 0 of 7 | 0 of 22 |
| Level 3 (the brand’s own lab report) | 0 of 7 | 0 of 22 |
The median is not the price you will pay. It is the midpoint of that store’s catalogue in this category, and it tells you whether a store is dear or cheap overall. For buying, the specific row in the table below is what counts.
What each tub contains
Median dose per serving
Price per kilo does not tell you how much active ingredient is inside the kilo. This table does: for each ingredient, the median dose per serving at each store and how many products reach the dose backed by studies (the same reference this site scores with).
| Ingredient | Nutritienda | Prozis |
|---|---|---|
| Whey protein concentrateEvidence-backed dose: from 20 g per serving | —7 of 7 contain it · none publishes the dose | —22 of 22 contain it · none publishes the dose |
The dose is per serving, not per tub. A big tub with a short dose forces you to take two scoops to get the same, and then it lasts half as long: that is why the price per dose in the next section does not match the price per kilo.
Why one is cheaper than the other
Factor by factor, with both stores’ data
Prozis costs 39 % more per kg than Nutritienda (€55.12/kg against €39.60/kg, medians of both catalogues). That difference does not come out of nowhere. These are the data that explain it, with each store’s figure alongside: pack size (median), different brands in the catalogue.
| Factor | Nutritienda | Prozis |
|---|---|---|
| Cost of one effective dosePrice per kg and price per dose point to the same store, so the dose does not erase the label difference: Nutritienda is cheaper both ways. | €1.056 | €1.470 |
| Pack size (median)Prozis sells bigger packs, and a big pack spreads the same tub, the same label and the same shipping over more kilos. Part of the price gap per kg is this and not a discount: comparing one store’s small pack with the other’s large one inflates the gap. | 700 g | 907 g |
| Different brands in the catalogueProzis mostly sells one brand, Prozis: 100 % of its catalogue in this category. Nutritienda spreads its own across 6 brands. A store selling its own brand skips the manufacturer’s margin and can cut the price without touching the formula; a reseller pays that margin and passes it on, and in exchange carries brands the other does not sell. | 6 (29 % Vitobest) | 1 (100 % Prozis) |
None of these factors is an accusation. They are medians of what each store publishes on its pages on the day prices were collected: where a page does not declare a figure, that store does not count in that row instead of counting as a zero. A specific product can contradict its store’s median, and that is what the full table is for. How all of this is calculated.
All 29 products from both stores
Filter by store to see only one
Filter and sort
| # | Product | Store | |||
|---|---|---|---|---|---|
| 01 | Nutritiendafree delivery | €59.90 | €29.95 /kg≈ €39.93 /kg of protein | 67 | |
| 02 | Prozis 100% Whey Prime 1000 g4.6★ (1) | Prozisfree delivery | €30.99 | €30.99 /kg≈ €41.32 /kg of protein | 66 |
Prozis 100% Whey Prime 400 g · 2 flavours | Prozisfree delivery | €26.99 | €67.47 /kg≈ €89.96 /kg of protein | 55 | |
| 03 | Nutritiendafree delivery | €31.90 | €31.90 /kg≈ €42.53 /kg of protein | 65 | |
| 04 | Prozisfree delivery from €24.99 | €22.99 | €32.84 /kg≈ €43.79 /kg of protein | 65 | |
| 05 | Nutritienda+€3.99 delivery | €18.49 | €36.98 /kg≈ €49.31 /kg of protein | 63 | |
| 06 | Prozisfree delivery | €34.99 | €38.58 /kg≈ €51.44 /kg of protein | 62 | |
| 07 | Prozis Whey Protein Fusion 900 g4.6★ (1) | Prozisfree delivery | €34.99 | €38.88 /kg≈ €51.84 /kg of protein | 62 |
| Prozisfree delivery | €34.99 | €49.99 /kg≈ €66.65 /kg of protein | 58 | ||
| 08 | Nutritienda+€3.99 delivery | €19.80 | €39.60 /kg≈ €52.80 /kg of protein | 61 | |
| 09 | Nutritienda+€3.99 delivery | €20.50 | €41.00 /kg≈ €54.67 /kg of protein | 61 | |
| 10 | Prozisfree delivery | €45.99 | €45.99 /kg≈ €61.32 /kg of protein | 59 | |
| Prozisfree delivery | €91.98 | €45.99 /kg≈ €61.32 /kg of protein | 59 | ||
| Prozisfree delivery | €49.99 | €55.12 /kg≈ €73.49 /kg of protein | 57 | ||
| Prozisfree delivery | €99.98 | €55.12 /kg≈ €73.49 /kg of protein | 57 | ||
| Prozisfree delivery | €50.99 | €56.22 /kg≈ €74.96 /kg of protein | 57 | ||
| Prozisfree delivery | €101.98 | €56.22 /kg≈ €74.96 /kg of protein | 57 | ||
Prozis 100% Real Whey Protein 400 g · 2 flavours | Prozisfree delivery | €24.99 | €62.48 /kg≈ €83.29 /kg of protein | 56 | |
| 11 | Nutritiendafree delivery | €48.60 | €48.60 /kg≈ €64.80 /kg of protein | 58 | |
| 12 | Prozisfree delivery | €44.99 | €49.60 /kg≈ €66.13 /kg of protein | 58 | |
| 13 | Prozisfree delivery | €45.99 | €50.71 /kg≈ €67.61 /kg of protein | 58 | |
| 14 | Prozisfree delivery | €47.99 | €52.91 /kg≈ €70.55 /kg of protein | 57 | |
| 15 | Prozisfree delivery | €32.99 | €54.98 /kg≈ €73.31 /kg of protein | 57 | |
| 16 | Prozisfree delivery | €84.99 | €56.66 /kg≈ €75.55 /kg of protein | 57 | |
| Prozisfree delivery | €49.99 | €66.65 /kg≈ €88.87 /kg of protein | 55 | ||
| 17 | Prozisfree delivery | €103.99 | €57.33 /kg≈ €76.44 /kg of protein | 56 | |
| 18 | Prozisfree delivery from €24.99 | €22.99 | €57.48 /kg≈ €76.63 /kg of protein | 56 | |
| 19 | Prozis Cacao Caliente con Proteína Whey 400 g · 3 flavours | Prozisfree delivery from €24.99 | €23.99 | €59.98 /kg≈ €79.96 /kg of protein | 56 |
| 20 | Nutritiendafree delivery | €66.00 | €94.29 /kg≈ €125.72 /kg of protein | 52 |
No product makes that cut
Out of the 29 in this table, none meets every filter that is currently set at the same time.
29 products in this table
Questions about Nutritienda and Prozis for whey protein
Answered with the data on this page
Nutritienda or Prozis for whey protein?
On price per kg, Nutritienda: its median is €39.60/kg against €55.12/kg at Prozis, which is 39 % dearer. The median does not decide on its own: most of the rest of the mark is certification, and there Nutritienda has 0 products at level 4 and Prozis has 0.
Which is the cheapest whey protein across the two stores?
Scitec Nutrition Whey Infusion from Nutritienda, at €29.95/kg (2000 g pack for €59.90), at verification level 1 out of 4.
Why don’t Nutritienda and Prozis cost the same?
Prozis costs 39 % more per kg than Nutritienda (€55.12/kg against €39.60/kg, medians of both catalogues). That difference does not come out of nowhere. These are the data that explain it, with each store’s figure alongside: pack size (median), different brands in the catalogue. Price per kg and price per dose point to the same store, so the dose does not erase the label difference: Nutritienda is cheaper both ways. Prozis sells bigger packs, and a big pack spreads the same tub, the same label and the same shipping over more kilos. Part of the price gap per kg is this and not a discount: comparing one store’s small pack with the other’s large one inflates the gap.
Which of the two stores scores better?
Scitec Nutrition Whey Infusion from Nutritienda, with 67 out of 100. The score is 35 % price per kg against the cheapest in the category, 35 % verifiable quality (certification, purity and additives), 20 % the category's own requirements and 10 % the buyers' rating at the store, and it is computed without looking at affiliate links. Prices from October 31, 2026.
Keep comparing whey protein
Same dataset, another question