Eat these 20 foods to feel superhuman in 2023: 1. Lean Beef Lean beef is one of your best sources of iron, zinc, and selenium. 2. Poultry One 3.5-oz. serving of skinless chicken breast has vital nutrients like potassium, vitamin D, iron, and calcium. 3. Fish Oily fish such as salmon and trout are rich in omega-3 fatty acids that can benefit your heart and nervous system. 4. Eggs Not only do eggs provide a lot of protein, but they’re also a great source of vitamins B-2 and B-12. 5. Berries/Raspberries Berries are some of the best sources of disease-fighting nutrients and prebiotics for a healthy gut. 6. Spinach The high iron