| 1. Nathan achieved Olympic gold medals three times for relay and 50m long-course swimming. |
| 2. In the 2012 Olympics, he also won an individual 100m freestyle gold and team event gold/silver for 4x100m medley/freestyle relay. |
| 3. He has earned 24 medals across Olympics, Pan-Pacific, and World Championships, with 15 gold, 6 silver, and 3 bronze. |
| 4. While at the University of California, he secured the NCAA championship title five times. |
| 5. Nathan held American records with times of 18:66 seconds for 50m and 41.08 seconds for 100m freestyle. |
| 6. He made a guest appearance on Discovery Channel's Myth Busters, adding to his celebrity status. |
| 7. At the Austin Grand Prix, he set a new pool record of 48.3 seconds in the 100m freestyle. |
| 8. Nathan's physique is ideal for swimming with flat and flexible feet, a long torso, and highly flexible shoulders. |
| 9. He experiences anxiety in open water due to poor visibility, fearing not being able to see underwater. |
| 10. As a child, Nathan's elder brother displayed dominance in strength, speed, and size over him. |
| 11. He was diagnosed with testicular cancer in 2019 but successfully recovered and returned to competition. |
| 12. Adrian was inducted into the California Athletics Hall of Fame in 2022. |
