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Q: Which protein powder should I choose?

It depends on your goal and diet. Whey protein blends suit most everyday training goals, WPI suits those wanting more protein with less carbs and fat, mass gainers suit those needing extra calories, and plant-based protein suits vegan or dairy-free diets. Compare our most popular picks in our Top 10 Protein Powders.

Q: How much protein powder should I take?

Most protein powders recommend 1–2 scoops per serve, which is usually around 20–40g of protein. Always follow the directions on your product's label and use protein powder alongside a balanced diet.

Q: How do I choose the right size tub?

If you're trying a new protein for the first time, start with a smaller size to make sure you enjoy the flavour and formula before committing to a larger tub. Most regular users find 1–2kg tubs offer the best value per serve.

Q: How does WPI differ from whey protein concentrate?

WPI is more filtered with higher protein and lower fat and lactose per serve. WPC is a solid everyday option with good value. Compare both in our WPI and WPC collections.

Q: Are plant-based proteins as effective as whey?

Plant-based proteins are a great option for vegan, dairy-free or allergen-conscious diets. See our full range of plant-based protein for more detail.

Q: Do you stock Australian-made protein powders?

Yes — we stock a range of Australian-made and Australian-owned protein brands. Browse our full range and filter by brand to find locally made options.

Q: Can I return protein powder if I don't like the flavour?

Please check our returns policy for full details on our satisfaction guarantee.

Q: Do you price match on protein powder?

Yes — our Best Price Guarantee means we'll beat any competitor's price by $1 and throw in a free shaker.

Top 10 Protein Powders

Whey Protein

Mass/Weight Gainer

Protein Water

Plant Based Protein

Weight Loss Protein

Casein Protein

Collagen Protein

Women's Protein

Meal Replacement Shakes

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Top 10 Protein Powders

Whey Protein

Mass/Weight Gainer

Protein Water

Plant Based Protein

Weight Loss Protein

Casein Protein

Collagen Protein

Women's Protein

Meal Replacement Shakes

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Protein Powder Buying Guide

Shop protein powder online at Nutrition Warehouse, home to Australia's largest range of whey, WPI, plant-based, mass gainer and weight loss protein. Compare hundreds of protein powders from Optimum Nutrition, Genetix, Rule 1 and more, with Click & Collect, same-day delivery and our Best Price Guarantee.

Last Updated: Wednesday 14th October 2026

What Is Protein Powder?

Protein powder is a convenient way to increase your daily protein intake alongside whole food sources. Whether you're training for strength, building muscle, managing weight or simply staying active, protein powder makes it easier to hit your daily protein target.

Not sure how much you need? Our guide to how much protein you need each day breaks it down by goal and body weight.

At Nutrition Warehouse, we stock Australia's largest range of protein powders — from whey blends and WPI to mass gainers, plant-based protein and more. Not sure where to start? Check out our Top 10 Protein Powders for 2026 — ranked by sales data and expert picks.

Compare types of Protein Powder

Type	Best For	Key Benefit
Whey Protein Blends	Everyday training and muscle support	Versatile, great taste, suits most goals
Whey Protein Isolate (WPI)	Lean muscle goals and calorie-conscious diets	Higher protein, lower carbs and fat
Hydrolysed WPI	Post-workout recovery	Fast-digesting and premium grade
Whey Protein Concentrate (WPC)	Everyday nutrition and value	Reliable and cost-effective per serve
Plant-Based Protein	Vegan and dairy-free diets	Complete amino acid profile when blended
Mass & Weight Gainers	Bulking and hard gainers	Higher calories and carbohydrates per serve
Weight Loss Protein	Calorie-conscious nutrition plans	Lean formulas with added support ingredients
Protein Water	On-the-go and post-cardio	Light and refreshing alternative to shakes
Casein Protein	Before bed or between meals	Slow-digesting for sustained protein release
Collagen Protein	Skin, hair, nails and connective tissue	Wellness-focused protein support
Women's Protein	Women's nutrition and fitness goals	Tailored formulas for female-specific needs
Meal Replacement Shakes	Busy routines and structured nutrition	Complete meal in a shake

Whichever type suits your goals, most of these ranges come in a variety of flavours to keep things interesting. If chocolate is your go-to, browse our dedicated Chocolate Protein Powder collection for the best-selling options across every brand.

Protein Powder for Your Goal

Match your protein powder to what you want to achieve:

Building muscle and strength: whey protein blends or whey protein isolate make it easy to hit your protein target around training.
Lean or calorie-conscious goals: choose a WPI or weight loss protein with more protein and fewer carbs and fats per serve.
Bulking or struggling to eat enough: mass gainers add extra calories and carbohydrates to each shake.
Vegan or dairy-free: plant-based protein made from pea, rice and other plant sources.
Sensitive to lactose: WPI and hydrolysed WPI are filtered to be lower in lactose than whey concentrate, or go fully dairy-free with plant protein.
Protein before bed or between meals: casein protein digests slowly.
Busy days and on the go: meal replacement shakes, ready-to-drink protein shakes or protein water.

How to Choose a Protein Powder

Start with your goal: use the table and goal guide above to narrow down the right type.
Check protein per serve: most whey and plant proteins provide around 20–30g of protein per serve. Compare the nutrition panel, not just the front of the tub.
Consider your dietary needs: look for dairy-free, lactose-friendly or plant-based options if they suit you better.
Compare cost per serve: larger tubs usually work out cheaper per shake than smaller sizes.
Pick a flavour you'll enjoy: you'll be drinking it often, so taste and mixability count. Many ranges come in smaller sizes so you can try before committing to a bigger tub.

Shop Popular Protein Powders

Looking for a proven place to start? These are some of the most popular protein powders at Nutrition Warehouse:

Lean Whey by Genetix Nutrition: a popular whey blend with a huge flavour range
Gold Standard 100% Whey by Optimum Nutrition: one of the world's best-known whey protein blends
Lean WPI by Genetix Nutrition: a pure whey protein isolate for lean goals
Gold Standard 100% Isolate by Optimum Nutrition: a WPI from the makers of Gold Standard Whey
ISO 100 by Dymatize: hydrolysed whey isolate for fast digestion
R1 Protein WPI by Rule 1 Proteins: a WPI and hydrolysate blend with minimal fillers
Serious Mass by Optimum Nutrition: a high-calorie mass gainer for bulking
Ultimate Plant Protein by bRaw: a dairy-free plant protein blend

Want to see how they compare? Read our Top 10 Protein Powders ranking.

Why Shop Protein Powder at Nutrition Warehouse?

Australia's largest range of protein powders in one place
Trusted brands including Optimum Nutrition, Genetix Nutrition, EHP Labs, Rule 1 and bRaw
Expert advice in-store and online across 120+ locations
Click & Collect available same day
SameDaySupps delivery in select metro areas
Free shipping over $150
Best Price Guarantee — we'll beat any competitor by $1 and throw in a free shaker
18 years of supplement retail experience

Shop Protein by Form

Not after a powder? Get your protein in a format that suits your day:

Protein bars for an easy high-protein snack
Ready-to-drink protein shakes for grab-and-go protein
Protein cookies for a sweet treat with added protein
Protein snacks including chips, spreads and treats
Protein baking mixes for high-protein pancakes, muffins and more

Need something to mix your shakes in? Browse our protein shakers and bottles.

Which protein powder should I choose?

How much protein powder should I take?

How do I choose the right size tub?

How does WPI differ from whey protein concentrate?

Are plant-based proteins as effective as whey?

Do you stock Australian-made protein powders?

Can I return protein powder if I don't like the flavour?

Do you price match on protein powder?

Sale Best Seller Best Seller

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Protein Powder Buying Guide

What Is Protein Powder?

Compare types of Protein Powder

Protein Powder for Your Goal

How to Choose a Protein Powder

Shop Popular Protein Powders

Why Shop Protein Powder at Nutrition Warehouse?

Shop Protein by Form

Frequently Asked Questions

Which protein powder should I choose?

How much protein powder should I take?

How do I choose the right size tub?

How does WPI differ from whey protein concentrate?

Are plant-based proteins as effective as whey?

Do you stock Australian-made protein powders?

Can I return protein powder if I don't like the flavour?

Do you price match on protein powder?

You might also like

Join free.
Earn up to 7.5% Store Credit

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Results for ${searchQuery}

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Recent Searches

Popular Categories

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${collectionTitle} (${response?.total_num_results || 0})

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Protein Powder Buying Guide

What Is Protein Powder?

Compare types of Protein Powder

Protein Powder for Your Goal

How to Choose a Protein Powder

Shop Popular Protein Powders

Why Shop Protein Powder at Nutrition Warehouse?

Shop Protein by Form

Frequently Asked Questions

Which protein powder should I choose?

How much protein powder should I take?

How do I choose the right size tub?

How does WPI differ from whey protein concentrate?

Are plant-based proteins as effective as whey?

Do you stock Australian-made protein powders?

Can I return protein powder if I don't like the flavour?

Do you price match on protein powder?

You might also like

Join free.Earn up to 7.5% Store Credit

${ gift.displayName }

Join free.
Earn up to 7.5% Store Credit