Pea Protein Vs Whey Protein. Which Is Best?

vegan protein powders

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Veganism is a growing trend; and as more of us than ever become aware of how our dietary choices impact the wider world, the number of people simply taking a more mindful approach to their eating habits is increasing, too.

When you research vegan protein powders, you’ll usually find them weighed up against the current, most popular non-vegan choice: whey protein.

On top of this, you’ll likely find endless information on soy protein, hemp protein powder and rice protein.

Pea protein, however, isn’t quite as readily available as some others, so is often missed off the list. But don’t let this lack of detail fool you – pea protein is a superb protein option!

Today, we’re putting pea protein to the test against the reigning champ, whey and the results may surprise you!

natural meal replacement shakes

What is Whey Protein?

Whey protein is actually a combination of proteins made from whey, the liquid by-product of cheese production.

The protein in cow’s milk is about 80% whey and 20% casein.

Ever opened a yoghurt pot to find a watery type liquid floating on top? That’s whey.

It was traditionally a waste product until producers realised there was commercial value to be made.

Enzymes are introduced to the liquid to separate the whey and casein, before being filtered to remove the fat and carbohydrates.

In many cases, additives and preservatives (usually artificially created ones) are then added to the mix.

The (then significantly less) liquid whey is spray-dried with hot and cold air to turn it into the powder, which is eventually sold. 

Of course, because whey protein comes from cheese, it is unsuitable for vegans or those following a dairy or lactose-free diet.

For those people, the battle of whey protein vs. pea protein will always be won by the latter! 


Whey protein is a by-product of cheese. Thus is contains dairy and isn’t suitable for those who cannot consume lactose.

Furthermore, whey protein is an animal product making it unsuitable for those on a vegan diet.

Being suitable for vegans and allergen-free, pea protein is wins at face-value.

dairy cows

What is Pea Protein?

Pea protein is an organic, plant-based protein, which is suitable for those with digestive and stomach sensitivities, as well those following a vegan or cruelty-free diet.

Pea protein powder is a supplement made by extracting proteins from yellow peas; so not quite the green balls of goodness you’re used to!

The peas are dried and ground into a fine powder similar to the consistency of flour, before being added to water and removed of starch.

Such minor processing allows the powder to retain all of the natural vitamins, minerals and nutrients present in peas to keep them as ‘whole’ as possible.

Despite being from yellow peas, pea protein powder is usually beige – yep, quite a surprise!

Peas are naturally rich sources of protein and iron, so that remains the case in pea protein powder.


Pea protein is high in various vitamins and minerals including iron.

Being vegan and hypoallergenic means that it is a safer choice than whey.

Shakes that include pea protein instead of whey protein include Nutribuddy’s range of natural shakes. The range is 100% vegan and hypoallergenic.

Pea Protein

Whey Protein: Nutrition

There are four widely available types of whey protein, which are concentrates, isolates, hydrolysates and native whey.

Each has a different nutritional profile, and many brands add ingredients such as refined sugar to their blends.

For the avoidance of doubt, therefore, the following refers to isolates (most commonly sold as a health and fitness product) with no additives included.

Approximately, you can expect to find the following nutritional value in one scoop of whey protein powder:

  • 20g of protein
  • 5g of carbohydrates
  • 5g of carbohydrates
  • 5g of carbohydrates
  • No iron.

Whey protein powder contains all nine essential amino acids and a good dose of BCAAs, which you’ll see regularly mentioned in the marketing of such products.

In particular, whey protein contains high levels of leucine and cystine.

Leucine is a growth-promoting amino acid, or as it’s called medically, anabolic – but this word is rarely used, due to its unpleasant association with illegal steroids.

Cystine helps promote antioxidant production in the body; specifically glutathione, which reduces cell damage.

Pea Protein: Nutrition

The nutritional makeup of pea protein powder is pretty impressive when you consider that it’s a plant and has had minimal processing.

Many other protein powders on the market are riddled with synthetic chemicals and other man-made added ingredients to boost their nutritional profile.

The exact nutritional content varies between brands, of course – but approximately, you can expect to find the following in two scoops of pea protein powder:

  • 15g of protein
  • 1g of carbohydrates
  • 1g of fibre
  • 230mg of sodium
  • 5mg of iron.

Pea protein powder contains a good dose of amino acids too – in fact, it boasts all nine ‘essential’ amino acids.

These are the amino acids that your body can’t create and so must be consumed through food, as well as of the three branched-chain amino acids (BCAAs) that you’ll often see promoted by health and fitness companies. 

Yep, that’s right – while most people wrongly assume that amino acids are lacking in plant-based proteins, pea protein powder boasts all of them.

Can you see why we love it so much now?!

woman concerned about shake ingredients

What are the Benefits of Pea Protein?

Despite the popular misconception that protein must come from meat and other animal products, pea protein powder bucks this and enjoys a whole host of health benefits to boot.

Aside from giving an unbeatable protein dose when compared to other vegan protein powder, those consuming pea protein powder on a regular basis can benefit from a range of natural assistance to their health.

The unique amino acid blend within pea protein powder has been proven to encourage enhanced muscle thickness in those working out, as well as to increase heart health and decrease the risk of contracting heart disease.

Pea protein powder’s high iron content is particularly beneficial to women who experience iron-deficiency and need easily absorbable sources of the mineral.

Even better, pea protein powder can help reduce the amount of calories absorbed from heavy food consumption – so you don’t need to feel too guilty about helping yourself to an occasional extra slice of pizza!

And when compared to protein powders that aren’t vegan, pea protein powders have been proven to be just as effective at affecting satiety to keep the consumer feeling full.

woman doing yoga exercising

What are the Benefits of Whey Protein?

There’s no doubt that proteins including all nine essential amino acids are the most beneficial for health and muscle growth, and whey, like pea protein powder, includes all of them. 

The health benefits of whey protein in terms of its amino acid content are the same as the health benefits of pea protein powder, so the section on that above covers this off. 

However, whey has also been proven to be particularly effective at stimulating growth in humans.

Take breast milk, for example, which is often lauded as the most powerful and versatile milk – you might be surprised to hear that it’s actually 60% whey!

Whey protein is extremely quickly absorbed into the body, so noticeable effects can be enjoyed quickly. 

woman drinking meal replacement shake

What are the Downsides of Pea Protein?

As with any foodstuff, pea protein powder isn’t for everyone, and so, it may not be for you.

Pea protein is generally easily digested and, as the protein is isolated from the pea itself, it does not cause the bloating or gassiness that whole peas can.

Pea protein powder contains a fair sodium content, so those on specialist, low sodium diets, may need to limit their intake of it. 

Lastly, pea protein powder is (unfortunately) not yet widely available and so it may be more difficult to get hold of than traditional protein powders or vegan protein powders that are more cheaply produced.

There is also little information detailing pea protein powder’s nutritional value and benefits online: although we’re aiming to change that with this article! 

matcha green tea powder

What are the Downsides of Whey Protein?

Whey protein is a by-product of cheese, and so is not suitable for those following vegan or lactose-free diets.

The taste of whey protein alone is pretty unpleasant and strong enough that it can flavour other food and drink.

You’ll usually find, therefore, that whey has other artificial flavourings added to it in order to mask it.

These flavourings are frequently synthetic, so if you’re looking to maintain a diet containing only whole foods or organic material, you’ll need to avoid most commercial whey protein powders.

Of course, additives and ingredients vary hugely between producers and brands, so you’ll need to read up and understand the ingredients list to gauge exactly what you’re consuming.

The scientific results of whey protein, when put through performance tests, remain mixed. Clinical trials suggest that whey protein is only as effective as carbohydrates in helping build muscle as a dietary supplement. 

In 2010, the European Food Safety Agency (EFSA) investigated into the marketing claims around health benefits made by manufacturers and promoters of whey protein powder.

The conclusion was that the marketing claims made were not adequately supported by evidence.

woman jogging staying healthy

Pea Protein vs Whey Protein: Which is the Reigning Champion?

Whey protein is a long term market favourite, but contenders are flooding in, many of which are packed with plant-based, vegan goodness.

Of course, whey has its place, and those of you who have used it and enjoyed success as a result, should stick to it if you feel it’s the right choice for you.

As a company who promotes plant-based power, however, for us, the battle of pea protein vs whey protein is won by the former!

Pea protein powder has been proven time and time again to be just as effective as its non-plant-based counterparts.

On top of this, it’s cruelty-free, suitable for all kinds of specialist diets and is easy to digest.

Nutribuddy Shake Complete by JustHelina

The Nutribuddy High Protein Sculpting Shake, for example, is 100% vegan, cruelty-free and includes gluten-free oats with no stabilisers, emulsifiers or thickeners.

It contains rice and pea protein and boasts the rich blend of amino acids and nutrients you’d expect as a result.

There’s no better or purer healthy vegan protein shake on the market – and the inclusion of pea protein powder is a huge building block of its power!

Additionally, if you’re struggling to stay on top of a balanced diet and can’t always find the time to create a delicious and nutritious meal, the Nutribuddy Shake Complete may be the plant-based protein product for you.

Rather than a standalone protein shake, it’s a full meal replacement and can be used in place of a ‘proper’ food meal up to twice a day.

This too includes a blend of rice and pea protein powder, so is vegan and enjoys the perfect mix of macro and micronutrients, to give your body everything it needs in one beverage.

Even better, it takes under 20 seconds to make, so the convenience certainly beats sourcing, preparing and cooking a full meal when you’ve got a hefty schedule on your hands.

High Protein Sculpting Shake

Alternatively, if you’re looking for a shake with high protein content, Nutribuddy’s High-Protein Sculpting Shake may be for you.

The High-Protein Sculpting Shake has a 2:1 protein to carb ratio and includes a mix of 3 different vegan proteins: pea protein (of course!), rice protein and hemp protein.

To get the best range of proteins, it is recommended that you consume a mix of several vegan proteins.

This is because each protein has its own unique benefits.

Pea Protein Rules!

There’s a place for all proteins and everyone has their own preference, but in the battle of pea protein vs whey protein, pea protein is our champ.

Not only is it effective, but it’s suitable for those whom traditional proteins aren’t, so you can enjoy it no matter what your dietary requirements, sensitivities or intolerances.

Pea protein reigns supreme in a future which we hope will be cruelty-free, healthy, nutritious, and great-tasting, too!

Nutribuddy Shake by JustHelina
Nutribuddy Shake by JustHelina

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