Protein coffee combines a ready-to-drink iced coffee or cold-brew with 15 to 20 g of protein per bottle. The idea is to fold a protein hit into the morning caffeine routine instead of adding a separate shake. Most bottles run on a milk-protein or pea-protein base, sweetened lightly, and use real coffee or cold-brew concentrate rather than coffee flavouring.

Ghost Protein Coffee leads the dessert-leaning end with 20 g protein, 110 mg caffeine, and flavours like vanilla latte and mocha. Pricing usually sits at $3.50 to $4.50 per 11.5 fl oz bottle in 12-packs. Iconic Cold-Brew is the cleaner-ingredient option with 20 g grass-fed milk protein at $3.00 to $3.80 per bottle. OWYN Cold Brew Coffee covers the plant-based side at $3.20 to $3.80 per bottle. La Colombe Draft Latte (Triple Shot) sits adjacent with lower protein but stronger coffee credentials.

What to look for: at least 15 g protein, 100 to 200 mg caffeine for a real morning hit, real coffee or cold-brew listed in the ingredients (not "natural flavour"), and under 10 g sugar. Calorie counts range from 130 to 210 kcal, which is light enough to pair with breakfast rather than replace it. Our Value Score ranks every bottle on this page by grams of protein per dollar.

• Best vanilla latte: Ghost Protein Coffee Vanilla Latte (12-pack). 20 g protein, 110 mg caffeine, and the smoothest dessert-leaning flavour in the category.
• Best mocha: Ghost Protein Coffee Mocha. Chocolate-forward, still 20 g protein. Useful when plain coffee fatigue sets in.
• Best plant-based pick: OWYN Cold Brew Coffee. 20 g pea-pumpkin protein, 70 mg caffeine, dairy-free.
• Best for sensitive caffeine intake: OWYN Cold Brew at 70 mg caffeine is a useful step down from Ghost's 110 mg if you want protein with a lighter buzz.
• Cross-category alternative: If you want a richer milkshake-style coffee feel, our premium RTDs include Muscle Milk Pro Mocha varieties at 30 g+ protein.