Fuel Your Gains: How to Choose and Use the Perfect Whey
Fuel Your Gains: How to Choose and Use the Perfect Whey
In the world of fitness, protein shakes are a go-to for meeting your protein goals, but the sheer number of options can be confusing. With a market flooded by different types, brands, and price points, choosing the right whey protein tub can feel like a workout in itself.
Whether you’re looking to optimise muscle protein synthesis or simply hit your daily macros more conveniently, understanding what’s inside your shaker bottle is key.
This whey protein guide is designed to cut through the noise. Featuring expert insights from Predator Nutrition founder Reggie Johal, we go beyond the label to explore how whey is made, the truth about "amino spiking," and how to calculate the exact dosage for your specific goals.
What is Whey Protein?
Whey protein is one of the two primary proteins found in cow’s milk, with the other being casein.
During the cheesemaking process, the solids (curds) become cheese, and the liquid left over is whey. If you’ve ever opened a yoghurt and seen a thin layer of liquid sitting on top, that’s liquid whey.
What is Inside Whey Protein?
Whey is a complete protein, meaning it contains all nine essential amino acids (EEAs) that your body cannot produce on its own. It is particularly rich in Branched-Chain Amino Acids (BCAAs), including Leucine, which is often cited as a key trigger for muscle protein synthesis.
The Different Types: Which Whey is Right for You?
The different types of whey include whey protein concentrate, whey protein isolate and whey protein hydrolysate. The way the liquid whey is processed determines the final protein concentration and how your body interacts with it.
1. Whey Protein Concentrate (WPC)
WPC is the most common form. It typically contains 70% to 80% protein, with the remainder consisting of some milk fats and lactose. Because it is less processed than other forms, it often retains more of the natural dairy flavour and a smoother texture.
2. Whey Protein Isolate (WPI)
Isolate undergoes further filtration to remove almost all the fat and lactose. It is usually 90% protein by weight. This option is an excellent choice for those who are lactose-sensitive or seeking the leanest possible protein source.
3. Whey Protein Hydrolysate (WPH)
WHP is pre-digested whey, where the protein chains have been broken down into smaller peptides. This option enables faster absorption, making it a popular choice for immediate post-workout nutrition.
Reggie explains:
So fundamentally, the concentrate will be richer in fats and sugars… It’s relatively minor even then… You'll have some microfractions, some compounds which I think have been shown to have some positive effects, actually, with things like immunity, and it would digest very slightly slower, because of the… small amounts of fats. The whey isolate and the hydrolysate are quite similar. The isolates tend to be very low in fat and sugar, potentially zero. The hydrolysate is pre-digested, so it's essentially even faster in digestion. Now, realistically, I don't think that means better, but it can make it easier to digest for people who have an issue.
Isolate vs Concentrate: Who actually needs Isolate? Is the extra processing worth the cost?
Reggie explains:
Who actually needs isolate? Nobody needs either one of them to be quite frank, and we don't need it for any particular thing. There's nothing that either would do that can't be replicated… But for those who prefer whey for reasons of taste, digestibility, convenience, price, obviously, it's priced well compared to something like beef and chicken, for example, then cool.
If you were going to the extent for people that need it, I would say the people who would need isolate would probably be people who have an issue with or a sensitivity to whey protein broadly. If you were to switch to an isolate, then chances are for most people, that would fix those issues because it's probably the trace amounts of lactose, for example, in whey concentrate that may be problematic for them. If it was just lactose, you could just take a lactase enzyme, and even buying that enzyme plus the whey protein would probably be cheaper for you than buying a standalone isolate. There’s going to be some people who like the taste of isolate because it's very clean tasting, but functionally, there'll be no difference in terms of how that impacts your body, I don't think.
The 'Clear Whey' Trend: Is this a marketing gimmick for people who hate milky shakes, or is there a functional benefit?
Reggie explains:
The funny thing is, as far as the clear whey trend, it's become very popular within the UK, but there's nothing new about this. I think UK brands are essentially copying something that we saw in one particular American brand. They did this probably 20, 30 years ago. So, there's nothing new about this. [It] is essentially a transparent drink... In terms of benefits, the only benefit is if you like that type of taste, like a clear squash type taste, you’ll probably have your protein more reliably... There’s no functional benefits compared to other types of protein. It's purely based upon taste preferences, which, to be honest, is what most food is, if you think about it.
The Benefits: What Does Whey Protein Actually Do?
Protein is a fundamental building block of the human body.
- Muscle Growth: Protein contributes to a growth in muscle mass. By providing essential amino acids, whey helps your body build new tissue after resistance training.
- Muscle Maintenance: Whether you are in a calorie deficit or staying active, protein supports muscle maintenance. This process is vital for ensuring that you retain your hard-earned strength.
- Bone Health: Many people don't realise that protein also contributes to maintaining normal bones, playing a structural role beyond just your muscles.
Dig Deeper: Is Whey Protein Good For You?
How Much Whey Protein to Take?
The "perfect" amount of whey protein isn't a one-size-fits-all number; it depends entirely on your body weight, activity level, and fitness goals.
Think of whey as a convenience tool. It's high-quality protein, but it should supplement your diet, not replace it.
How much protein is in a scoop?
While it varies by brand, a standard 30g scoop typically delivers 20-25g of protein. At Predator Nutrition, we always recommend checking the label for the specific protein-to-weight ratio.
How many calories are in whey protein?
A standard serving usually contains roughly 100 to 150 calories. Isolates are generally at the lower end (around 100 kcal), while flavoured concentrates might be slightly higher.
How much whey protein per day?
The amount depends on your total daily requirements. Active individuals typically aim for 1.6-2.2g of protein per kilogram of body weight. While whole foods like chicken, eggs, and legumes should be your foundation, whey is a convenient way to reach these targets when life gets busy.
Learn more: How Much Protein do I Need?
Does whey rank higher than chicken or beef in terms of biological value, and does that actually result in more muscle?
Biological Value (BV) is a measure of how efficiently your body can turn the protein you eat into body tissue. It isn’t just about how much protein is in a food, but how much of that protein actually stays in your body to help build muscle, repair cells, and create enzymes.
Reggie explains:
All it's really saying is, to what extent does a given proportion of [protein] get taken up by the body to drive the processes that contribute towards muscle mass…
But does it actually result in more muscle… If you're having a whey protein in a study that starts and ends after an hour, it's going to look better. And maybe that would get it a high score in a certain sense, but that just doesn't translate in the real world. I have to echo that point. There's been no study ever which has shown differences in performance for different types of whey protein, of any type, providing calories and protein are matched.
So is it better? It does rank higher than chicken and beef. That's true. They will have more fat. There'll be people who are probably looking at chicken and beef and thinking they may potentially have some health issues with those… But from a muscle-building perspective, not really. Not if it's all matched up.
When Should You Take Whey Protein?
For years, the anabolic window (the 30 minutes immediately following a workout) was considered the only time to drink a shake. Modern research suggests that your total daily protein intake is the most important factor for muscle maintenance and growth, rather than the timing of intake.
Because whey is so fast-acting, it remains an ideal post-workout choice to kickstart the repair process. It's also a great way to add high-quality protein to a breakfast that might otherwise be low in macronutrients.
Internal Link: [When to take whey protein]
How to Find the Best Whey
With thousands of options on the market, it can be overwhelming. At Predator Nutrition, we advise looking for:
- Transparency: Choose brands that are open about their sourcing and manufacturing.
- High Protein Content: Ensure the product isn't "amino spiked" (where cheap individual amino acids are added to inflate the protein count artificially).
- Mixability: A high-quality whey should dissolve easily without leaving clumps.
When choosing the best whey protein, Reggie suggests comparing the protein content and calories per 100g instead of per serving:
Once you compare these products against each other across 100 grams, then at that point it is very clear because now you'll see how much protein each product has per 100 grams and the calories it has. And then if you take five different protein powders and look at them, you'll quickly work out, "All right, you know, this shows me Brand A has got 70% protein per 100 grams of product. Someone else has 10% of sugar. Someone else who's 5% fat, let's say." And then you've kind of got a standard frame, then.
Do you think Amino Spiking is a problem? How can a customer look at a '25g protein' label and know if they are actually getting 25g of complete protein?
Some have suggested that certain brands may add amino acids, such as glycine, to make the protein content appear higher on the label. However, it is not a complete protein, so you’re not getting the full benefits you would be getting from a quality source.
Reggie explains:
The real scandal in the UK would have been around 2010, something around then… Amino spiking has been going on for a long time. In the recent past, I don’t really see any issues on this front, at least not in the way you’d see issues in the past, where it was essentially underhand. Now you will actually see companies listing these aminos. The way it works, just so you understand: if I’ve got 100 grams of powder, and let’s say I’ve got just whey protein concentrate without any flavourings whatsoever—nothing else on there—that would roughly speaking have 80 grams of protein for every 100, so 80%. What you can do, though, is take out 10 grams of that whey, which now means it’s a cheaper product for the supplier, and you could add 10 grams of glycine.
Glycine actually is particularly useful because it’s got a sweet taste, which is what you’d want. Now, how does that then correspond to the final protein when it goes through a test? If it was initially 80 grams of protein per 100, what do you think 70 grams of protein plus 10 grams of glycine will come up as? It’s definitely not going to be 70 because they’ve added the glycine for a reason, but it also won’t be 80. It will actually be reported as being way more than its actual weight in that sense. So, you could have the glycine, and suddenly your protein has gone up to 85.
What are the other ingredients customers should watch out for?
If you look on the other ingredients section or the list of ingredients, if you see glycine there, or creatine, or leucine—any kind of free-form amino acid essentially in that particular location—then that is something the brand has added to that product.
Now, they may have a justifiable reason as well. It’s worth pointing this out: if you add creatine to that protein powder, creatine has got a lot of benefits even if you’re taking just a couple of grams a day. Two grams of creatine will do more for you than two grams of protein.
Two grams of creatine will do more for you than two grams of protein.
But it’s more the case that if they’ve taken out 10 grams of protein and replaced it with two grams, but that two grams comes across on a test as being 10 grams worth of nitrogen—which is what they look for, nitrogen testing is what they do when they look for the protein content—so two grams of protein will have its own benefits, but maybe for that brand, its bigger benefit is it’s over-reporting the protein so really maybe that’s why they’ve included it…
If you were really concerned, the only thing you can really do is buy a protein without any kind of additional amino acid added.
If a company was to spike in the modern day, meaning they’ve added it but not listed it on the label, how could you know? The only real way I think you could is if you look at the Predator Whey, for example: we list every amino acid on our product on our website. I don’t think every brand does... Some will actually have it on the label… but some brands won’t even have that on their label, meaning you would not know how many amino acids they’ve got from different aminos. If they haven’t listed it on their label in any form, then, potentially there is a brand out there. But for those that show the actual breakdown of amino acids—we do that…
I think you could Google Optimum Nutrition Gold Standard Whey label, and you’ll see that there is a breakdown of every amino acid included; there’ll be about 16 or so listed. And if you look at the numbers of mg against those aminos, what you’d want to do is compare that to an unflavored whey protein concentrate and look at what its amino acids are going to look like. And if there are any massive differences where, for some reason, a particular protein powder has got two or three times more glycine or any amino acid that stands out as being unnaturally high, then that could be an instance where it’s essentially spiking.
Where is the protein industry in general going?
Stuff around testing, I would hope to see that more - transparency in general.
I think there are options where people will always try to look for some new filtration method or so on.
I think because of the price and growth in demand for dairy… the pricing issues of whey are only going to worsen over the coming years. So, are you then going to see more novel protein sources?
I don’t think this one’s particularly going to work; I told this guy who pitched it to me 10 years ago, but he swore that this was going to take over from whey protein back then... insects.
Shop Whey Protein at Predator Nutrition
Whey protein is a powerful tool, but it works best as part of a balanced diet and a consistent training program. Whether you’re looking to build muscle, maintain your current physique, or support your bone health, high-quality whey protein is one of the most researched and effective supplements available.
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