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Under $25
Finding quality protein powder on a budget in Australia is easier than you might think, especially if you know how to compare value properly. This page shows protein powders under $25 from major Aussie retailers, sorted by cents per gram of protein, which is the fairest way to compare products of different sizes. As of May 2026, options like Muscle Nation Custard Protein from Woolworths (around 1.6 cents per gram) and Switch Nutrition Beef Protein Isolate (about 2.5 cents per gram) offer solid value without breaking the bank. When you're shopping, always divide the total price by the grams of protein per serve, then multiply by serve count to get the true cost per gram. This helps you see past fancy packaging or bulk sizes that aren't actually better deals. We refresh this comparison regularly to keep prices and availability current across Coles, Woolworths, and supplement retailers.
Don't just compare sticker prices - check the cost per gram of protein, since tub sizes and protein content vary heaps between brands.
How the live ProteinPrice Value Score is calculated
Coles Wellness Road Pea Protein ranks 3rd on this list at just $10 for 500g. It's unflavoured, which makes it versatile for smoothies or cooking but means you'll need to add your own flavouring. The value score of 7.7/10 reflects decent bang for buck. Being a Coles house brand, it's widely accessible across Australia. Plant-based option for those avoiding dairy.
