Where does whey protein come from

In this brief guide, we are going to answer the question “Where does whey protein come from?” With an in-depth analysis of the nutritional value, health benefits and allergies of the whey protein. Moreover, we are going to discuss the storage and shelf life of whey protein.

Where does whey protein come from?

Whey protein comes from whey which is produced when the watery portion of the milk is separated from the curd in the formation of the cheese.

What is the nutritional value of whey protein?

The nutritional value of the whey protein depends on the brands from which you have bought whey protein.

The nutritional value of powdered whey protein, one scoop or 19.5grams,  provided by USDA is as follows;

  • Calories: 75
  • Fat:  1g
  • Sodium: 75mg
  • Carbohydrates: 3.5g
  • Fibre: 0g
  • Sugars: 1g
  • Protein: 13g

What are the health benefits of whey protein?

There are several health benefits of whey protein being a high protein product. Some of  them are as follows;

  • Whey protein is a protein which contains the essential amino acids and helps you in building and repairing tissues, creating hormones and maintaining neurotransmitters.
  • Whey protein also helps in weight loss as a low carb and high protein diet is the best plan for losing weight.
  • It also helps in enhancing athletic performance recovery. It helps in improving muscle and energy recovery.
  • Although more study is yet needed, regular use of whey protein in your diet helps in lowering blood pressure and improving vascular function.

Can whey protein cause allergy?

Yes! Dairy is among the allergens and whey protein is a dairy product which can cause allergies.

Some people even are specifically allergic to whey protein in dairy products.

People with lactose intolerance can also get allergen by the use of whey protein as it contains lactose.

Here are the adverse effects of the consumption of whey protein in excess quantities.

How to properly store the whey protein?

Proper storage of the whey protein is essential to prevent it from going bad.

Whey protein is sensitive to heat, light and moisture. You can store the whey protein in the following way;

  • The best place for the whey protein to store is a cool, dark place away from the sunlight, heat and moisture.
  • In this way, a pantry can be the best place to store the whey protein but you can use your kitchen’s cabinet for this purpose too.
  • Make sure to tightly cover the whey protein once you have opened the package.

What is the shelf life of the whey protein?

The whey protein comes with a “past by” or “expired by” date which used to be pretty long from 12 to 18 months.

The expiry date only represents the time till which you can enjoy the best quality of the whey protein but whey protein doesn’t go bad even after it is properly stored.

It can easily last a few months longer than the expiry date.

The shelf life of the whey protein is as follows;

  • An unopened package of the whey protein lasts for 6_9months or even 2_3 years past its expiration date.
  • However, once you have opened the package of the whey protein, it lasts for at least 3_6 months past its expiry date.

It happens because once you open the package,  the whey protein becomes exposed to moisture and bacteria which can contaminate the whey protein.

Some whey protein comes with additional vitamins which can decline their potency with time but the protein remains safe to consume.

What are the signs of whey protein?

Whey protein doesn’t go bad unless water or any other contaminator is added to the whey protein intentionally or by chance.

However,  you should check the whey protein before using it to know whether it’s good to use or not.

You can easily know that your whey protein has gone bad by looking at a few signs.

The signs of the bad whey protein are as follows;

  • If the texture of the whey protein is ruined and you see it clumpy, it indicates that it has gone bad.
  • Off smell also shows the bad whey protein which should be discarded.
  • If the look and smell of the protein are fine then you should taste it and if the taste of the whey protein is bad or unusual,  you should throw it away and not use it.


In this brief guide, we answered the question “Where does whey protein come from?” With an in-depth analysis of the nutritional value, health benefits and allergies of the whey protein. Moreover, we discussed the storage and the shelf life of the whey protein.



Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.