McDonald's Sausage McMuffin nutrition facts

One serving of McDonald's Sausage McMuffin (1 Serving) has 400 calories. That is about 20% of a 2,000-calorie day.

It provides a solid 14 g of protein per serving (28% of the 50 g daily value), but protein supplies only 14% of its calories, so it is not a protein-dense food. Foods where protein provides 30% or more of calories are generally considered protein-dense.

It is hard to fit into a strict keto diet. One serving has 27 g of net carbs and 29% of its calories come from carbohydrates, while most keto plans cap net carbs at 20–50 g per day.

760 mg per serving, which is high (20% or more of the 2,300 mg daily value).

2 g of total sugars per serving. Labels list total sugars, which include natural sugars from fruit and milk as well as any added sugars.