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FAQ

1. Where does whey protein come from?

Whey originates from milk. When you produce cheese from milk, you get two things; cheese and whey. Whey protein in its purest concentrated form contains little to no fat or lactose, and is thus a very rich source of protein and amino acids, which are needed by the human body daily.

2. Why should I consume whey protein?

Whey proteins are of very high nutritional quality and represent a valuable food and protein ingredient to include in human diets. The building blocks of proteins are the Amino Acids (sometimes referred to as AA). 9 of the 20 Amino Acids the body requires must be provided through the diet – these are called Essential Amino Acids (EAA). Whey protein has a unique amino acid profile with a very high nutritional value, as it contains all 20 Amino Acids in the right proportion needed.

3. In which products can I find whey protein?

Whey protein is used in various kinds of processed foods; primarily in fresh dairy products, cheese, sport nutrition beverages and protein bars. If a food product contains whey protein, it is declared on the ingredients list. Whey protein is also widely used in infant formula and medical nutrition.

4. What are the benefits of whey protein?

Whey proteins are of very high nutritional quality and represent a valuable food and protein ingredient to include in human diets. The building blocks of all proteins are the amino acids. 9 of the 20 amino acids the body requires must be provided through the diet. These are called essential amino acids. Whey protein has a unique amino acid profile with a very high nutritional value, as it contains all 20 amino acids in the right proportion needed.

5. What is the amino acid profile of whey protein?

Whey protein has a unique amino acid profile with a very high nutritional value as it contains all 20 amino acids. In general terms, an amino acid profile refers to the content and distribution of the different amino acids found in a protein. Whey protein is not a single protein but rather a mixture of proteins derived from whey. The exact profile of the amino acids found in a whey protein product depends on the processing of the whey raw material.

6. What is the nutritional value for whey protein?

The nutritional value of whey protein is very high and among the highest found in common food proteins. The strong nutritional value of whey protein is due to its higher content of all the nine essential amino acids needed by humans compared to other sources of proteins, alongside its easy digestibility[1][2]. Details on the nutritional value of whey protein types can be found here.

7. Where can I purchase whey protein?

Whey protein products can be purchased all over the world online and in various supermarkets, nutrition and health shops.  

8. How much protein should I consume daily?

The daily needs for protein and essential amino acids vary with life-stage, health status and lifestyle. Daily protein needs range between 0.8 and 2 grams of protein per kilogram of body weight. You can take a quick test here[ , to see how much protein you need to maintain your body throughout your life.

9. Does whey protein come in different flavours?

Yes. Most whey protein products on the market have added flavours and are offered in different varieties to meet consumer preferences.

10. How do I incorporate whey protein into my daily meals?

Inspiration on how to easily incorporate whey protein into your diet can be found here.

11. When is the best time of day to consume whey protein?

In general, an even distribution of protein during the day is recommended to provide a steady supply of protein and amino acids.

12. Are all proteins the same?

No, the composition and quality of proteins depend on the type and quality of the raw material used. Detailed nutritional information on various food products and ingredients can be found here.

13. What is the main difference between whey protein and plant protein?

Typically, animal-derived protein contains the right proportions of the essential amino acids needed by humans. Very often proteins that originate from plants do not contain the right proportions or sometimes even lack certain essential amino acids needed by humans. The correct combination and often larger amounts of different plant protein sources are thus needed to fulfill daily needs[3].

14. Can I consume whey protein whilst pregnant and/or breastfeeding?

Whey protein is considered a safe food protein to ingest for all humans, unless specific milk protein allergies exist. Ingestion of whey protein as supplement can help people meet their daily protein needs and is both nutritionally efficient and easy to absorb.


[1] http://www.fao.org/ag/humannutrition/35978-02317b979a686a57aa4593304ffc17f06.pdf

[2] Br J Nutr. 2017 Feb;117(4):490-499. doi: 10.1017/S0007114517000125. “Values for digestible indispensable amino acid scores (DIAAS) for some dairy and plant proteins may better describe protein quality than values calculated using the concept for protein digestibility-corrected amino acid scores (PDCAAS)”. Mathai JK, Liu Y, Stein HH.

[3] Amino Acids. 2018 Dec;50(12):1685-1695. doi: 10.1007/s00726-018-2640-5. Epub 2018 Aug 30. “Protein content and amino acid composition of commercially available plant-based protein isolates”. Gorissen SHM1, Crombag JJR1, Senden JMG1, Waterval WAH2, Bierau J2, Verdijk LB1, van Loon LJC3.

[4] On www.wheyforliving.com we refer to proteins with the DIAAS score 1 or above as complete proteins