In addition to the vitamins and minerals beef also contains a number of bioactive substances and antioxidants that may have health benefits. Some examples include:

• Creatine: Beef is a rich source of creatine, which is important for the production of energy in the body's cells.
  
  
• Conjugated linoleic acid (CLA): Beef contains CLA, which is a type of polyunsaturated fat that has been shown to have anti-inflammatory properties and may have a role in weight management.
  
  
• Carnitine: Beef is a good source of carnitine, which is important for the metabolism of fat.
  
  
• Heme iron: Beef contains heme iron, which is the form of iron found in animal products and is more easily absorbed by the body than non-heme iron found in plant-based foods.
  
  
• CoQ10: Beef is rich in CoQ10, which is an antioxidant that plays a role in the production of energy in the body's cells.
  
  
• Choline: Beef is a good source of choline, which is important for the development of the brain and nervous system, and has a role in liver function and fat metabolism.

It's important to note, however, that many of these bioactive substances and antioxidants are found in higher amounts in lean cuts of beef, and consuming excessive amounts of red meat is associated with an increased risk of certain chronic diseases such as cancer and heart disease. Eating a varied and balanced diet is important for optimal health.