Whey protein isolate powders are sold in almost every corner of nutrition stores.
You hear words like, “Isolate protein is better than concentrate. Choose isolate!” Yet, some articles are saying protein powders contain contaminants and are not safe to drink.
Which is true?
So here you are, looking for more accurate information about whey protein. So you can make a conscious decision to accelerate your health transformation journey.
Your burning questions about milk protein isolate will be answered by science here.
As you read along, we encourage you to question whether whey protein isolate powder is really good for you.
What Is Whey Protein Isolate?
This isolate protein is derived from whey protein with the purpose to increase the protein content. It is the most protein-dense type of whey protein, as being more than 90% protein by weight.
It is often confused with whey protein, whey protein concentrate, and whey hydrolysate. Each of them is derived from whey but processed with different methods — which you’ll see later.
First, we need to understand the source of whey isolate.
What is whey?
It is found in milk, making up 20% of the milk protein, and the remaining 80% is casein.
What is whey protein made of?
Whey is a class of protein, consisting of multiple globular proteins such as beta-lactoglobulin, immunoglobulin, enzymes and others.
Does whey have lactose?
Unprocessed whey consists of 75% lactose, 12% protein, and 9% minerals.
Whey manufacturers can make lactose-free or reduced-lactose whey protein powders by selectively removing lactose through ultrafiltration.
However, not all whey protein concentrate and whey isolate are 100% lactose-free.
Be sure to read the ingredient list and labels thoroughly. If you’re unsure, call the manufacturer and confirm the amount of lactose in the milk protein isolate.
If whey can be lactose-free, is whey dairy?
The short answer is Yes!
A food is considered a dairy product if it’s sourced from milk, even if it’s lactose-free. Since whey is extracted from milk, it is considered a dairy product.
The Three Types of Whey Protein
As mentioned earlier, whey protein can be processed differently to produce three products: isolate, concentrate and hydrolysate.
How are they different?
Which is better?
This infographics tells you everything at a glance.
What Is The Benefit Of Whey Protein Isolate?
Diets that focus on particular foods may stimulate weight loss but do not meet all the nutritional requirements that human needs.
So the diet works for a period, until the body screams for the missing nutrients, and trigger cravings.
— Eric Edmeades, Author Of Mindvalley’s Wildfit Program
A high-protein diet alone doesn’t help you lose weight effectively. Our bodies will crave for missing nutrients and will drive us to eat compulsively.
With that being said, whey protein does have a range of benefits including weight loss, but it should be consumed regularly for people with specialized diets only.
- It promotes muscle growth. Whey is rich in leucine, a potent amino acid that stimulates muscle growth.
- Anti-hypertensive. One of the proteins in whey, beta-lactoglobulin, has been shown to lower systolic blood pressure.
- It helps with weight loss. This is because whey protein reduces ghrelin, the “I’m hungry” signal-inducing hormone.
When Should I Take Whey Protein Isolate?
Since whey isolate accelerates muscle recovery, some people may think it’s better to take it right after a workout.
Well, take a step back and think about it.
“Do our bodies work that way?”
According to science, no.
Another group of researchers led by Brad Jon Schoenfeld found similar results, that the timing of protein consumption had no significant effect on body mass, fat mass, lean mass, muscle thickness, and maximal strength.
In other words, timing doesn’t matter when consuming whey protein isolate powder. But, you need to definitely consume it before it expires.
Does protein powder go bad?
The majority of protein powders have about 2 years of shelf life when stored according to instructions.
If the protein powder has expired or stored incorrectly, it’ll give out the rancid smell, taste bitter, become yellow or clumped up.
It’s best to not consume the protein powder in this condition.
The Best Whey Protein Isolate
The more closely a species adhere to their natural evolved diet, the healthier that species will be.
— Eric Edmeades, Author Of Mindvalley’s Wildfit Program
At this point, you may feel compelled to give whey protein isolate powder a try.
Just search on Amazon and you’ll get a list of top 50 whey protein isolate powder, with hundreds of brands, flavors, protein content, BCAA (stands for Branch-Chained Amino Acids that are made up of leucine, isoleucine, and valine) and other “marketing gimmicks”.
If you want to make wise, conscious decisions (without being affected by marketing gimmicks like ‘whey gold standard,’ ‘keto-friendly,’ or ‘zero carbs’), you’ll realize this:
“The best protein source actually comes from whole foods, not processed foods or powders.”
Do you think our ancestors, even our grandparents, get their protein from protein powders?
The Hidden Dangers Of Whey Protein Isolate Powder
Dr. Jaime Schehr N.D, R.D, a nutrition expert says, “Protein powder is for people who follow a plant-based diet or those with specialized diet — i.e., fitness professionals, endurance athletes, or those who are in recovery mode.”
She further adds, “Use protein powder when you’re in a bind, or if it’s an emergency.”
Let’s not forget that whey isolate powder needs to be heavily processed to extract protein from the whey.
Imagine putting a scoop of super-processed food into your gut. How would that affect your body?
And most protein powders have artificial sweeteners and sugar to enhance the taste, at the cost of your health. You wouldn’t know what kind of sugar (we’ve discovered 65 different names of sugar) they have snuck into your protein shake.
We, as consumers, need to be more conscious of our food choices. What the protein powder industry says may be more than what meets the eye.
The bottom line is, the closer you are to the human diet, the healthier you become.
Would you choose to consume protein powder? Why? Share your opinions in the comments below!