Introducing Quest Protein Milkshakes. The Quest High Protein Milkshake delivers all the rich, ice-creamy indulgence your cravings want and the category-leading macros you expect from Quest. Every sip is a delicious cheat. ✓ 45g of Protein ✓ Ultra-filtered Milk Protein Source ✓ 2g of Sugar ✓ 4g or less of Net Carbs