What Is Whey Protein Isolate Vs. Whey Protein Concentrate?

Ever wondered if you could make your protein shakes more efficient? Let us introduce you to whey protein isolate, the purer protein supplement.

We dive into the science behind whey protein to explain the difference between whey isolate and concentrate, to help you supercharge your workouts. 

Key Takeaways

• Research has shown that whey protein supplementation can support muscle gains. 
• Whey is a complete, high-quality protein derived from milk.
• In whey concentrate, about 80% of the formula is protein.
• Whey isolate usually has at least 90% protein by weight. 
• That makes whey protein isolate a purer, more efficient protein supplement compared to whey protein concentrate. 

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Whey Protein Isolate vs. Concentrate

Carriejune, founder of Minibeast, says:

"Whey protein isolate is an amazing tool for building muscle mass and strength. It's a purer form of protein than whey concentrate, which means you get more protein and fewer extra ingredients."

Supplements like fat burners and protein supplements are all the rage right now, and for good reason. Sufficient protein intake is crucial both for muscle growth and overall wellness. 

Whey protein supplements are some of the most popular ways to boost protein intake. If you've ever looked up protein powders, you may have noticed a few different types of whey protein.

The two main kinds are whey protein concentrate and whey protein isolate. Both whey isolate and concentrate can function as high-quality protein sources. But whey isolate has a few advantages.

Before we cover those, we need to explore what whey protein is.

What Are Whey Isolate and Whey Concentrate?

Whey protein is derived from milk. It's formed during the cheese-making process. 

During that process, solid curds separate out. These are what become cheese. The remaining milk is called whey.

Whey protein is actually a blend of eight different proteins, all naturally found in cow's milk. It's a complete protein, which means it contains all nine essential amino acids that we need to get from our diet. 

However, whey isn't just made of protein. There's other stuff there, including fats, carbohydrates, and lactose. 

The next step in the whey protein manufacturing process is pasteurizing the liquid whey to sanitize it. Then that liquid is dried out into a powder.

While this general processing method is the same for both whey isolate and whey concentrate, there are a few differences. 

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Concentrate

Whey protein concentrate is the powder left at the end of that process. It contains a lot of protein. 

High-quality protein powder using whey concentrate usually has around 80% protein. This can vary quite widely, though. 

Of course, that still leaves at least 20% of the whey concentrate. That portion is composed of carbohydrates and fats. Among those carbohydrates is lactose, a sugar. 

Isolate

Additional processing can remove more of those carbs and fats. If the resulting mix is composed of at least 90% protein by weight, it's considered whey protein isolate.

Key Differences Between Whey Isolate and Concentrate

As you can likely see, whey protein isolate has a few advantages over whey protein concentrate. 

First, the lower fat and carbohydrate content means you can get the same amount of protein with fewer calories. That's great for people following weight loss plans. 

Second, whey protein isolate contains less lactose than whey concentrate. That minimal lactose content is a huge potential benefit for people who are lactose intolerant or who have sensitive digestion. 

Third, whey protein isolate contains more protein than concentrate by weight. If you really need to boost your protein intake, whey protein isolate is likely a more efficient way to do so compared to concentrate.

That said, whey protein isolate is more processed than concentrate. The extra processing does result in whey protein isolate often being a little more expensive, too. 

Importance of Protein Intake

Protein is an essential nutrient. It's used for all kinds of things, including building muscle.

How much protein you need depends on many things, including your size and activity level. The Institute of Medicine recommends a minimum of 0.8g of protein per kilogram of body weight per day. 

If you exercise regularly and want to build muscle, you might need to consume more protein. Experts often recommend aiming for 1.5 to 2.2g of protein per kg of body weight per day. 

It's important that most of this protein comes from high-quality protein sources. Whey protein, including isolate and concentrate, is considered a high-quality protein. 

Protein is crucial for muscle protein synthesis and muscle building. But can protein powders specifically help?

Muscle Growth

Research suggests so. For example, one study found that people who took whey protein supplements with resistance training experienced greater increases in lean body mass and body strength compared to participants who didn't take whey protein. 

Interestingly, that study also concluded that this "enhancement effect" of whey protein "seems to be more evident when whey proteins are consumed within a multi-ingredient containing creatine."

Another study found that whey protein supplementation, combined with resistance training, helped increase muscle mass. The study concluded that "whey protein supplementation may alter body composition in favor of additional fat-free mass with no significant changes in body fat." 

Yet another study from 2023 similarly found that whey protein combined with resistance training enhanced increases in muscle mass, strength, and endurance. 

Where to Get Protein Powder (Isolate)

It's clear that whey protein powder can help enhance the muscle-building results of resistance training. The key, though, is to use a high-quality whey protein supplement. 

One great option is Minibeast's IsoDelight Protein. It's the purer protein powder you've been looking for. High-tech microfiltration technology removes excess lactose, fat, and impurities, leaving behind an ultra-clean formula to supercharge your muscles. 

As we mentioned, some research has found that whey protein works better when combined with creatine. If you'd like to take advantage of that, combine IsoDelight with Minibeast's MB Creatine Plus+. It's a patented, pH-buffered form of creatine monohydrate that's scientifically designed to deliver powerful creatine to your muscles without bloating. 

Conclusion

Whey protein is a great option for people looking to pack on muscle. While whey protein concentrate can help, whey protein isolate packs in a higher concentration of protein by weight. That lets you get the protein you need without consuming lots of excess fats, carbs, and calories. 

Frequently Asked Questions

Is Whey Protein Isolate Better Than Whey Protein?

High-quality whey protein has been shown to help support muscle growth. The advantage of whey protein isolate is that it has a higher concentration of protein by weight. In other words, the same amount of whey isolate will usually have more protein and fewer calories than whey concentrate. 

Do I Really Need Isolate Protein?

Whey protein isolate is a great way to help you meet your protein goals and build muscle. Research has found that whey protein supplementation can help people increase muscle size and strength. 

Which Form of Whey Protein Is Best?

Whey protein isolate is the most efficient form of whey protein. It has more protein by weight than whey protein concentrate and fewer other ingredients, like lactose or fats. 

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