Ranked by value per gram of protein

Best value ready-to-drink shakes in Australia

Finding the best value ready-to-drink protein shakes in Australia means looking beyond the sticker price to what you're actually paying per gram of protein. This comparison ranks RTD shakes from major Australian retailers based on cents per gram of protein, helping you stretch your budget further whether you're buying from Chemist Warehouse, Coles, ALDI, or supplement specialists. As of May 2026, Body Science's RTD Protein Shake leads the pack at around 10.8 cents per gram of protein, while budget options like Nrg Maxx's Energy Food Drink from ALDI also deliver solid value. When comparing products yourself, simply divide the price by the total protein grams (not serving size) to calculate the true cost per gram, which makes it easy to compare a $3.24 single serve against a $40 multipack. This page is refreshed regularly to reflect current pricing and availability across Australian stores.