A 6-ounce serving of filet mignon has 348 calories. The 15 grams of total fat account for 144 calories, 6 grams of which are saturated fat. The high fat content contributes to the steak's 144 milligrams of cholesterol.
The steak also contains a high amount of protein. A 6-ounce portion contains 48 grams, yielding almost 100 percent of the recommended daily allowance based on a 2,000-calorie diet. It also contains 15 grams of iron.
Without any seasonings, filet mignon contains 108 milligrams of sodium. This amount provides 5 percent of the recommended daily intake, making it a healthier cut for individuals watching their salt consumption.