best casein protein supplement

Casein Protein Supplements: Test & Reviews

Author: Anne Jonson

Diet & Nutrition Expert

Welcome to our great casein protein test. Here we present you all of the casein protein supplements that we have tested. We have compiled detailed background information for you and also added a summary of customer reviews online.

We want to make the purchase decision easier for you and help you to find the best casein protein product for you.

You can also find answers to frequently asked questions in our guide. You will find important information on this page that you should definitely pay attention to if you want to buy casein protein supplements.

  • Casein is a milk protein found in cheese and quark. The protein is made up of long chains of molecules, which results in slow processing by the body.
  • It also provides important amino acids that the organism cannot produce itself.
  • There are three different types of casein available on the market: caseinate, micellar casein and casein hydrolyzate. These are made differently and are suitable for different purposes. Casein powder can be drunk as a shake or used for baking.

Best Casein Protein Supplements

Best casein protein with vanilla

This micellar casein protein with vanilla flavor is ideal if you want to add a little flavor to your dishes and shakes. According to the manufacturer, the 1 kg bag holds 33 servings and helps to regenerate your muscles.

It’s best to take this protein between meals or before bed.

Best casein protein with chocolate

According to the manufacturer, the casein protein with chocolate flavor contains 82 g protein per 100 g powder and is therefore ideal for athletes or achieving your dream figure.

Due to the good solubility, it can be wonderfully mixed into various dishes or shakes and can be optimally integrated into your daily routine. In addition to the 1 kg bag, the powder is also available as a 2.5 kg bag or in other flavors.

Best neutral casein protein

This neutral casein protein is ideal if you prefer to refine your food or shake without additional flavor. According to the manufacturer, the protein content is over 85 percent.

Because it does not contain any sugar or other additives, the powder is also ideal for a low-carb diet and conjures up your dream figure in conjunction with exercise. The powder is also ideal as a baking protein.

Best multi-component casein protein

The multi-component protein with vanilla flavor has four different protein sources: casein, milk protein isolate, whey protein and chicken egg protein. The high-quality protein sources thus optimally contribute to maintaining and building muscle mass.

One package contains 500 g of powder, which you can also buy in other flavors. So you can refine your food and drinks individually.

Questions to Consider Before Buying Casein Protein supplements

What is the difference between casein and whey?

Casein – also called milk protein – is a component of milk. The remaining part of the milk is the protein whey.

Milk consists of 20 percent whey and 80 percent casein. Since casein is made up of long-chain molecules, it is broken down much more slowly by the body.

The digestion of milk protein and its transport into the cells takes up to eight hours. In this way, you supply your body with important protein building blocks for a longer period without eating.

Compared to casein, the whey protein is absorbed almost at the same time and transported to the cells.

This is why athletes take whey protein right after exercise and casein before bed.

The structure of casein also contributes to its poor solubility.

This does not mean that the powder is insoluble in water, but that you need a lot more water than for whey. This is why some people prefer to prepare the casein shake with milk.

What does the casein protein do?

Casein protein structure is made up of long-chain molecules, which leads to slow recovery.
Because of this property, the protein is drunk before going to bed, as it provides the body with sufficient protein stores throughout the night.

As a result, the body has enough amino acids for the muscle cells to regenerate.

The slow processing of the casein also has the advantage that it triggers a long-lasting feeling of satiety. That is why the protein is also used as a dietary supplement.

Who Needs Casein?

Casein protein is rich in amino acids, which are important for building muscle.
Therefore it is mainly used as a dietary supplement. used in two areas:

  • Use in sports: Micellar casein is particularly suitable for this, as it can support both muscle building and the prevention of muscle breakdown. Not only the strength values, but also the hypertropic values ​​of the muscles can be increased by casein.
  • Use in diets and for weight loss: In combination with weight training, several studies have found that casein can lead to better fat loss, strength and muscle mass gain compared to whey protein. Since casein can also ensure a higher feeling of satiety over a longer period of time it is popular as a dietary supplement in diets.

This makes it perfect for athletes who are in a calorie deficit and want to avoid muscle loss.

Casein protein is also ideal for anyone who has a low-protein diet.

Is casein protein suitable for vegetarians, vegans and those with lactose intolerance?

As already mentioned, casein is a dairy ingredient, which is why it is not suitable for vegans. Casein protein is recommended as a dietary supplement for vegetarians.

A disadvantage of casein is the high proportion of lactose, which is why people with lactose intolerance can only use casein to a limited extent. However, there are now casein supplements that do not contain lactose.

If you suffer from lactose intolerance, it is best to seek advice from your family doctor. If necessary, you can also buy a product without lactose.

What alternatives to casein protein are available?

As an alternative to casein protein, mainly natural foods are possible.

For example, milk, cheese and quark have a high proportion of casein.

Compared to the powder, however, these contain less casein, but a larger amount of fat.

If you want to change or add to your diet, then the foods mentioned above are ideal.

However, if you want to build muscle and limit your fat intake, other protein sources such as chicken, fish or eggs should be on the menu.

What types of Casein Protein supplements are there and which one is right for you?

If you want to supplement your diet with casein, then you have to find the right product for you. There are three different types of casein:

  • Caseinate
  • Micellar Casein
  • Casein hydrolyzate

The difference between these three forms is in the way they are obtained. Therefore, their properties differ from each other.

In the following we explain how each individual product is made and what advantages and disadvantages this entails.

Caseinate: Advantages & Disadvantages

The caseinate is produced by acid precipitation and subsequent neutralization using calcium hydroxide, potassium hydroxide or sodium hydroxide solution.

This creates a mixed product made of 80% casein and 20% whey, which can be found at very reasonable prices.

Micellar Casein: Advantages & Disadvantages

Micellar casein is a product made through an ultrafiltration process at lower temperatures, so the nutritional quality is maintained and the casein content is 100%.

Casein hydrolyzate: Advantages & Disadvantages

The long amino acid chains are broken by hydrolysis (using water) and heating the casein.

Therefore, casein hydrolyzate has lower allergen activity and a faster degree of digestion.

Purchase criteria: Use these factors to compare Casein Protein supplements

If you are about to buy a casein product, you will find a few criteria below that you can use to optimize your decision. These are:

  • Ingredients
  • Usage
  • Allergens
  • Country of origin
  • Flavor

In the next few paragraphs we will explain what is important for the individual criteria.


When buying casein, there should be a high casein value per 100 grams of protein. In high quality products this corresponds to 80 to 90 grams.

If there is a lower concentration, it means that the carbohydrates are predominant.

Many casein powders contain additives such as flavoring, sweeteners, and coloring. It is better if you choose a product with as few additives as possible.

It is possible that essential and non-essential amino acids and / or digestive enzymes have been added to the powder. It doesn’t have to be bad.

These additives ensure a fuller amino acid profile, which can support you in muscle building and regeneration and facilitate the processing of the protein.


Micellar casein is best suited for athletes as it ensures muscle regeneration, the prevention of muscle breakdown and muscle growth.

People who want to lose weight and those on a ketogenic diet can opt for a caseinate that is the least carbohydrate and fat.

All options are open to people who want to supplement their diet with high protein content.



If you suffer from lactose intolerance, you have to do without micellar casein. Even the casein itself can act as an allergen.

In the event of abdominal pain or blemished skin or dizziness, the intake must be stopped. There are now many products on the market from which the lactose is partially or completely extracted.

Soy protein is an additive in most products. Anyone who has an allergy to it should study the list of ingredients carefully.

Country of origin

A certain country of origin does not necessarily mean poorer quality, but the controls and standards in the other countries can be less strict.

The Cologne List is a good guide to the quality of a product. An order abroad can also cause high shipping costs and longer delivery times.


Here everyone can rely on their own preferences. The selection ranges from chocolate and vanilla to red fruits and cappuccino to cookies and blueberries.

Although almost all products contain artificial flavors, you can find out about the flavor source of a particular brand in forums and customer reviews.

Facts about Casein Protein

When should casein protein be taken?

Compared to whey protein, casein takes a little longer to metabolize.

As far as body composition is concerned, according to the current study situation, it does not matter whether the casein is taken in the morning or in the evening. In order to counteract the loss of muscle mass, the time of consumption can be chosen after training.

It is also recommended to take casein before going to bed. During sleep, the casein protein can be digested and absorbed effectively, keeping the amino acid level high throughout the night. Taking it before bed can therefore increase muscle protein synthesis and thereby increase muscle growth.

In terms of muscle growth, however, the actual amount of protein consumed throughout the day is considered to be the actual time of intake.

How long should casein protein be taken?

Basically, casein is a natural product and as long as you don’t exceed the manufacturer’s recommended dose per day, your personal preference will dictate your intake.

So you can take casein every day. Regular consumption of casein is recommended, especially in weight training, in order to provide the body with sufficient protein over the long term.

In which recipes can casein protein be used?

The powder can practically be used for every baking recipe. Since the casein is very absorbent, you need to think about plenty of liquid for the mixture.

If you need inspiration: The guys from have great ideas for you.

There you will find simple recipes, which are described step by step, as well as videos of the preparation.

Can casein powder also cause harm?

Casein is generally not harmful to the body. Only if you are lactose intolerant should you use a product without lactose. Abdominal pain or digestive problems can only occur if the recommended daily dose is exceeded.

Even so, some people are sensitive to casein without knowing it. Before you start taking it, talk to your doctor.

Is casein carcinogenic?

Numerous studies have looked at the relationship between dairy products and the risk of developing cancer over the years. Since casein is an important component of dairy products, the question arises whether casein has an influence on the risk of cancer.

Some studies identified a possible link between milk consumption and the development of prostate cancer cells.

So far, however, there has been no consensus on the effects of dairy products on cancer risk. A meta-analysis from 2016 that summarized the results of numerous studies, for example, could not demonstrate any influence of dairy products on the risk of cancer.