Beef is a good source of protein, iron, zinc, and vitamin B12. The nutrition facts of beef vary depending on the cut and the cooking method. Here are a few examples of the nutrition information for a 3.5-ounce (100-gram) serving of beef:

Ground beef (85% lean, 15% fat):

Calories: 285
Protein: 26 grams
Fat: 21 grams (8 grams saturated)
Cholesterol: 84 milligrams

Tenderloin steak (lean):

Calories: 142
Protein: 26 grams
Fat: 4 grams (1.5 grams saturated)
Cholesterol: 72 milligrams

Ribeye steak (fatty):

Calories: 282
Protein: 26 grams
Fat: 24 grams (9 grams saturated)
Cholesterol: 84 milligrams

It's worth noting that beef also contains some vitamins and minerals, such as vitamin B6, vitamin B12, niacin, selenium, and phosphorus.

It's important to keep in mind that the nutrition facts of beef can vary depending on the cut of meat and the cooking method. For example, lean cuts of beef, such as tenderloin or sirloin, will have less fat than fattier cuts, such as ribeye or brisket. Additionally, cooking methods that involve adding oil or butter, such as pan-frying or grilling, will increase the calorie and fat content of the meat.