Which proteins to choose? Guide to concentrates, isolates, hydrolyzed, and plant proteins

When it comes to protein powders, the most common question is simple: which one to choose?

The answer depends on the goal, the product composition, the protein source, and how you want to use it. Whey concentrates, isolates, hydrolyzed proteins, and plant proteins are not necessarily “better” or “worse” alternatives: they have different characteristics and may be more suitable for different needs.

In this guide, we will look at the main differences to help you navigate your choice.

First of all: what are whey proteins?

Whey are the whey proteins, a protein fraction obtained during the processing of milk.

Depending on the production process and the degree of purification, they can mainly be marketed as:

WPC – Whey Protein Concentrate
whey protein concentrates.

WPI – Whey Protein Isolate
whey protein isolates.

WPH – Whey Protein Hydrolysate
proteins subjected to a hydrolysis process.

The difference therefore lies not only in the commercial name but especially in the level of concentration and processing of the raw material.

1. WPC 80 concentrated proteins

WPCs are probably one of the most well-known forms of whey protein.

In the SaporePuro catalog, for example, WPC80 is a concentrate obtained from fresh pasteurized whey and marketed as a powdered food raw material.

Why choose a WPC?

A concentrated protein can be interesting when looking for a versatile ingredient to use for:

• protein drinks;
• smoothies;
• food preparations;
• baked goods;
• snacks and bars;
• high-protein formulations.

WPC often represents a good starting point for those who wish to increase protein intake without necessarily choosing a raw material with the highest degree of purification.

Who can it be suitable for?

For those looking for a versatile protein for daily nutrition and various food applications.

2. Whey isolate: higher protein concentration

Isolated proteins undergo a more extensive filtration process compared to concentrates.

The goal is to obtain a fraction with a higher protein concentration and a lower amount of other components naturally present in the raw material.

In the SaporePuro catalog, you can find, for example:

IsolateWhey SP – 100% Isolac 9102 Instant.

When to choose a whey isolate?

It can be particularly interesting when the priority is:

higher protein concentration

or when you want to use a more purified raw material within a formulation.

It is therefore a particularly interesting choice for:

• protein preparations;
• sports products;
• beverages;
• nutritional formulations;
• high-protein foods.

Concentrates or isolates?

It does not necessarily mean that the isolate is “better”.

A WPC and a WPI simply meet different needs.

If you are primarily looking for versatility, a concentrate may be sufficient.

If the goal is to obtain a formulation with a higher protein content and a more purified raw material, the isolate becomes particularly interesting.

3. Hydrolyzed proteins: what does it mean?

Here we take another step.

In hydrolyzed proteins, part of the protein chains undergoes hydrolysis, resulting in smaller peptides.

SaporePuro markets, for example, Hydrolysed Whey Isolate – Optipep 9862, a hydrolyzed and isolated whey protein.

When do they make sense?

They are particularly interesting raw materials in formulations where a protein that has already undergone a hydrolysis process is sought.

Compared to traditional whey, they are therefore a more specialized ingredient.

For this reason, I would tend to consider them a choice for those with a specific formulation requirement, rather than automatically the best solution for everyone.

WPC, Isolate, or Hydro? A quick comparison

The point is not to ask: “What is the best protein?”

but: “What is the most suitable protein for the use I need to make of it?”

And this is exactly the type of approach we want to take with the new Wellness section.

4. What if I prefer a plant-based protein?

Whey is not the only option.

There are proteins obtained from various plant sources, such as rice, pea, and other raw materials.

SaporePuro offers, for example, Rice Isolate Protein 80%, a raw material with a minimum declared protein content of 80%, suitable for applications such as bars, snacks, baked goods, and protein mixes.

Plant-based proteins become particularly interesting for:

plant-based formulations, food preparations without milk-derived protein ingredients, or simply to diversify protein sources.

In this case, however, the source changes characteristics such as taste, texture, and technological behavior.

5. How to choose concretely?

I would include a very simple box here:

Choose WPC if…

you are looking for a versatile whey protein suitable for numerous preparations.

Choose Whey Isolate if…

you want a raw material with a higher degree of purification and a high protein concentration.

Choose Hydrolyzed Whey if…

you need a hydrolyzed protein for a more specific formulation.

Choose a plant protein if…

you want to develop a plant-based preparation or use an alternative protein source to milk.

6. Do not only look at the protein percentage

This, in my opinion, is an important part of the article.

When comparing two products, the protein percentage should not be the only parameter.

You should also consider:

Source of the protein
Milk, whey, rice, or other sources.

Production process
Concentrated, isolated, or hydrolyzed.

Solubility
Particularly important for beverages and shakes.

Flavor and texture
Fundamental when the protein enters a recipe.

Final application
A protein intended for a shake may have different requirements compared to one used in ice cream, bakery, or bars.

Added ingredients
It is always useful to distinguish a protein raw material from a finished flavored or formulated product.

This is also one of the strong points we can communicate with SaporePuro: many of the proteins in the catalog are presented as raw materials, allowing the user to decide how to incorporate them into their formulation. The WPC80, for example, is described as free from added flavors and sugars.

So: which proteins should you choose?

There is no one-size-fits-all answer.

If you want a versatile solution, you can start with whey concentrates.

If you are looking for a raw material with a higher degree of purification, you can lean towards a whey isolate.

If you have more specific formulation needs, you can evaluate a hydrolyzed protein.

If you prefer an alternative source to milk, you might consider plant-based proteins.

The best choice always arises from the combination of composition, intended use, and technical characteristics of the raw material.

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