According to the search results, the McDonalds menu item with the most protein is the Double Quarter Pounder with Cheese, which contains 48g of protein. However, it is also high in calories and fat. If you want a high-protein option with fewer calories, the Crispy Chicken Sandwich is a solid choice, with 27g of protein and 470 calories. Other high-protein options at McDonalds include the Sausage McMuffin with Egg for breakfast, which contains 21g of protein. Additionally, the Artisan Grilled Chicken Sandwich, Bacon Smokehouse Artisan Grilled Chicken on Artisan Roll, and Buttermilk Crispy Chicken Sandwich are all high in protein. Its important to note that while McDonalds may not be the first choice for high-protein foods, there are still options available that can help meet protein requirements.