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Man sits on grass in park as he drinks from orange protein shake bottle

Protein Powders are an easy and healthy way to top up your protein intake. Add them to a smoothie, into your favourite recipe, or simply mix with your choice of water or milk. They’re a great option for active people, athletes, growing teens, during pregnancy and breastfeeding, or in later life when protein requirements increase. If you’re always on the go or following a vegetarian or vegan diet, protein supplements are a convenient way to up your protein intake. You’re spoilt for choice with the wide range of our most popular protein powders.

In this guide you’ll discover:

  • What is protein powder?
  • Why does the body need protein?
  • How much protein do I need?
  • Can I have too much protein powder?
  • How to use protein powder?

Protein Powder?

Simply put, protein powder is a concentrated source of protein – either  plant or animal based, along with other ingredients to add flavour. Each serving of a protein powder provides approximately 15 - 20 grams of protein, which is just the right amount to have at each meal. It’s an easy and delicious way to boost your daily protein intake.

Why does the body need protein?

When you eat protein, the body breaks it down into tiny amino acids which are added to a pool of  amino acids, ready for the body to use when needed. Dietary protein supports the body to maintain muscle mass, and provides the amino acids needed for various processes, including making hormones, neurotransmitters, and regulating immune cells.

There are 20 amino acids that the body needs, and nine of these are known as ‘essential’. Essential amino acids cannot be made by the body when you’re running low, so you need to make sure you get plenty through your diet.

If the diet is low in protein, the body will mine the muscles for the amino acids it needs to carry out its important work (this can result in what is known as muscle wasting). This can also lead to changes inenergy, mood, and sleep. 

How much protein do I need?

Protein is a ‘high satiety food’, which means it keeps you feeling fuller for longer. The amount of protein your body needs depends on a few factors including your age, sex, and how active you are. The recommended daily intake (RDI) of protein for each age and sex are:

  • Females aged 19 – 70 need 46 g/day, over 70 need 57 g/day.
  • Males aged 19 – 70 need 64 g/day, over 70 need 81 g/day.
  • Growing children aged 1 – 3 need 14 g/day, aged 4 – 8 need 20 g/day.
  • Boys aged 9 – 13 need 40 g/day, aged 14 – 18 need 65 g/day.
  • Girls aged 9 – 13 need 35 g/day, aged 14 – 18 need 45 g/day.

These quantities have been supplied by the Nutrient Reference Tables for Australia and New Zealand. 

Can I have too much Protein Powder?

Yes, it is possible to overdo it with protein. The maximum daily total protein intake for an adult is 2 grams of protein per kg of body weight. Too much can make it hard to pass stool, overload the kidneys, and lead to digestive issues. Consuming too much protein can also impact on your body’s ability to maintain ketosis, which is an important consideration if you are following a keto or low carb diet.

Fortunately, our protein powders list the recommended serving size on the label. Aim for approximately 20g of actual protein which is usually around 30g or 3 tablespoons of protein powder.

How to use Protein Powder:

Protein Powders are versatile, and depending on their other ingredients, they can be used to make a variety of drinks, snacks, and meals. 

Protein Powder shakes are super quick and easy when you’re out and about. Mix protein powder with your choice of water, milk, or plant mylk in a shaker or blender. The secret to successful mixing is pouring the liquid first, and then adding the powder. Flavour and mixability are key when choosing a protein powder for a shake. Flavour is important because you’re not adding other flavouring ingredients. Pea and whey protein powders are consistent winners for mix-ability.

Protein Powder smoothies are healthy and nutritious as the protein powder is blended with liquid, fruit and veggies. Nuts, seeds, and superfood powders can be added too. Protein smoothies provide fibre, vitaminsmineralsantioxidants, healthy fats, and protein. Plus, they offer more variety of taste than a simple shake. Protein smoothies are an easy way to have a healthy, high protein breakfast.

Protein Powder in snacks and baking is another way to increase the protein content your food. The best thing about adding protein powder to foods: you can get creative and make your everyday foods healthier, especially helpful for busy families. Make a batch of these tasty Oaty Protein Bites for the pantry.

You can add protein powder to your raw, un-baked recipes, like protein slice, bliss protein balls or chia pudding. These colourful  Earth Day Coconut Balls are packed will all sorts of goodness. You can also use protein powders to make tasty hotcakes and mix through a hot bowl of porridge (see our tips below on how to adapt a recipe). 

Tips for baking with protein powder

  • Using a recipe that lists protein powder as an ingredient is easier than adapting a recipe
  • If you decide to have a crack at adapting your favourite baking recipe, you’ll need to experiment a bit.
  • You can substitute up to half of the dry ingredients.
  • Different types of protein powders have unique textures – they each react differently when cooked.
  • Plant based protein powders are more absorbent than whey, so to balance this you’ll need to add more liquid or moist ingredients.
  • A rubbery texture might result from too much whey protein.
  • A dense, brick-like texture might result from too much plant-based protein.
  • Unflavoured protein powder is ideal for adding to foods because it doesn’t alter the flavour. 

Types of Protein Powder

There are 4 main types of nutritional protein powders:

Each have their own make up of amino acids, and other qualities that make them good for different scenarios. 

Whey Protein is popular because it’s easily mixed and has a naturally mild flavour. It’s a complete protein, which means when you consume a quality whey protein powder, you’ll be getting all nine essential amino acids that your body requires. Whey comes from the process of cheese making. Whey protein powder has a naturally creamy flavour, so it tastes great added to foods. It is one of the best protein powder for muscle gain and the best protein for muscle mass.

Shop All Whey Protein Powders →



Collagen Powders are up and coming as a great supplement to add to hot drinks, smoothies, and baking. Collagen comes with its own special set of amino acids which support the elasticity of the connective tissues in the body (like joints, ligaments, and the skin). Collagen powders are not as high in the 9 essential amino acids as some of the other options, so do keep this in mind if you’re looking for an all-round protein substitute.

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Pea Protein supplements are suitable for everyone, particularly vegetarians, vegans and anyone intolerant to whey protein. Being a plant-based protein, it’s a more sustainable, planet friendly choice. It’s made from the protein isolated from split yellow peas, which are legumes. Pea protein is naturally free from lactose so it’s an excellent choice for people who avoid dairy. Peas are also a rich source of branched chain amino acids (BCAAs - leucine, isoleucine and valine), which makes it popular with athletes.

Shop all Plant-Based Protein Powders →



Hemp Protein is an excellent option if you’re looking for a superfood nutrient boost. It’s made from protein isolated from ground hemp seed and is a balanced source of protein, but also contains fibre and healthy fats. People describe hemp protein as having an earthy or nutty taste, which makes it an excellent choice for smoothies and nut loaves. Because hemp is a plant-based protein, it is a more environmentally responsible choice than whey protein.

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How to choose a Protein Powder

Have a think about how you are going to be using a protein powder, and then choose one that best fits that scenario. For example, if you are just looking for a simple post workout shake, then choose one that has been naturally flavoured and can be easily mixed with water. We also have a range of affordable protein powders which are great for those on a budget.

What is a good Protein Powder?

The other thing to watch out for is hidden sugars in protein powder. At HealthPost we only select Protein Powders that contain less than 7% sugar, or 7 grams max per 100 grams. Our Sugar Policy is part of our promise to offer only the healthiest supplements to support your health goals. With no harmful ingredients and no hidden sugars, so you can be confident you’re making a healthy choice for you and your family.

The Best Protein Powders

There are so many choices, so to help you narrow it down we’ve picked out our top protein powders. 


Nuzest Clean Lean Protein

Best all-rounder Protein Powder: Nuzest Clean Lean Protein

A consistent crowd favourite is the Clean Lean Protein Powder in Vanilla. It has a smooth texture thanks to the premium European golden pea protein, and the simple vanilla flavour means that it can be used in smoothies and baking.

  • Complete protein for all your body’s needs.
  • Suitable for everyone, including vegans.
Shop Nuzest Clean Lean Protein →




Go Good NZ Whey Protein Isolate

Best Protein for Muscle Gain: Go Good NZ Whey Protein Isolate

Go Good is getting a name for being the one of the top whey protein brands available. If you are looking for a clean whey protein isolate, that contains all of the branched chain amino acids (BCAA) that your body needs, then give this one a go. We think it is one of the best whey protein for beginners who are looking for a post workout protein, and a top contender for the best whey protein brand.

  • 100% clean grass-fed whey protein isolate.
  • Popular with athletes
Shop Go Good NZ Whey Protein Isolate →




Viktual Protein Powder

Best for Workout Recovery: Viktual Protein Powder

After a workout or strenuous activity, the body goes into ‘recovery mode’. This involves hundreds of metabolic processes like: cleaning up waste, rehydrating cells, restoring glycogen energy stores, and supporting the muscles. If you’re looking for post workout pep, then this could be your key.

  • Great for post workout with super greens and native NZ plants.
  • Fortified with calcium, magnesium, and potassium.
Shop Viktual Protein Powder - Chocolate →




Amazonia Raw Slim and Tone

Best Protein Powder for healthy weight management: Amazonia Raw Slim and Tone

If you are wanting a protein powder when you are watching your calorie intake, whilst maintaining muscle mass, then this tasty powder from Amazonia is the one to pick. With a flavour like ‘chocolate caramel’ – how could you resist? Add some delicious protein packed shakes to your healthy weight journey with this plant-based protein powder,

  • No added sugar, and low carb.
  • Superfoods, and herbal blend.
Shop Amazonia Raw Slim and Tone →




Go Good Pea Protein Isolate

Best Vegan Protein Powder: Go Good Pea Protein Isolate

Many vegans and vegetarians appreciate a good tasting protein powder to supplement their diets. Go Good have upped the bar here with their award-winning clean pea protein powder, which has been flavoured with rich organic cacao for a delicious shake. This powder tastes great on its own or add some frozen berries and greenery for a superfood smoothie.

  • Winner of ‘Best of Natural’ 2020 award.
  • Affordable and high quality.
Shop Go Good Pea Protein Isolate →




New Hemisphere Hemp Protein

Best Hemp Protein Powder: New Hemisphere Hemp Protein

Hemp Protein is simply made by blending up hemp seeds, and nothing else. It has a natural nutty flavour, which works well in baking, and adds a point of difference to your morning smoothie. As a whole food source of complete protein, hemp seeds are an excellent option for those trying to get more essential fatty acids into their diet.

  • Contains essential fatty acids to support health.
  • High in fibre to support digestion, and elimination.
Shop New Hemisphere Hemp Protein →




Ritual & Rise Plant-Based NZ Hemp Protein

Best tasting Protein Powder: Ritual & Rise Plant-Based NZ Hemp Protein

At long last you can now get super delicious, naturally flavoured hemp protein powders! These are so tasty that you may not need to add anything else. Start your day with a protein packed Banoffee Pie flavoured smoothie – or try your hand at some dessert worthy bliss balls and baking.

  • Made from Non-GMO hemp seeds grown in New Zealand.
  • 100% Plant based, and gut friendly option.
Shop Ritual & Rise Plant-Based NZ Hemp Protein →




Nutra Organics Thriving Protein

Best Protein Powder for whole family: Nutra Organics Thriving Protein

A versatile protein powder that is suitable for the whole family, just make one big smoothie and share it around! You can also sprinkle this one onto cereal, yoghurt, or fruit – and add it to your baking. Nutra Organics have added live pre and pro biotics to this protein powder.

  • Plant based and family friendly.
  • Unique blend of bio-fermented superfoods.
Shop Nutra Organics Thriving Protein →




Amazonia Raw Protein Pregnancy Plus

Best Protein Powder for new mums: Amazonia Raw Protein Pregnancy Plus

Mums to be and new mums need all the nutritional support they can get. This protein powder contains added superfood powders like broccoli, beetroot, ginger, and shiitake mushroom to support vitality, and a whole lot more providing a good serving of all the essential vitamins. With just under 25grams of protein per serving, this can be blended with other ingredients such as berries, ground almonds, and coconut oil for a satiating snack while on the go.

Shop Amazonia Raw Protein Pregnancy Plus →




Nuzest Kids Good Stuff Multinutrient Smoothie Mix

Best Protein for little ones: Nuzest Kids Good Stuff Multinutrient Smoothie Mix

This isn’t just a simple protein powder for kids, it’s also packed with micronutrients which are great for your peace of mind as a parent. This is a lifesaver for those homes where there is little time for breakfast, and if you are looking for a highly nutritious way to boost their fruit smoothies.

  • Suitable for children aged 4 to 14 years.
  • Blend with water, milk, or make into a smoothie.
Shop Nuzest Kids Good Stuff Multinutrient Smoothie Mix →




Whether you’re looking for the best workout supplement brands, or a protein powder to make an easy protein shake, a nutritious protein smoothie or to add to cooking, we’ve got you covered with our range of  natural protein powders that meet with our strict ingredient standards.

Shop All Protein Powders →



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