Here are the facts. Before going vegan, Lewis consistently dominated both sprinting and the long jump. After the heights reached in 1991, only 1 year after starting the vegan diet, Lewis started to lose his dominance in both the sprints and the long jump.
In 1992, he failed to qualify for the Olympic team in the 100 m or 200 m. Lewis did, however, qualify for the long jump and was eligible for the 4 x 100 m relay team. The vegan diet was starting to take its toll. Then in the 1992 Olympics, he ran a very fast 4 x 100 relay and won the long jump, but with a shorter jump than in previous years. He was unable to compete in his formerly strongest events – the 100m and 200 m sprints.
Then in 1993, Lewis competed at the 4th World Championships in Stuttgart, but finished fourth in the 100 m sprint and did not even compete in the long jump. He did win a bronze in the 200 m sprint, which was his final Olympic or World Championship medal in a running event.
Starting in 1994, injuries kept Lewis largely sidelined for the next few years.
An impartial observer would say, “Here is a world class athlete who was performing very well across the board. Then he went vegan, had one great year, got progressively less consistent, and then was sidelined by injuries.”Veganism ruined Carl Lewis's athletic career, 100% based on 1 rating