Mike Tyson has said he reached 345 pounds during his retirement years, long after his boxing prime, when he was struggling with obesity and severe depression.

When he was 345 pounds

In a recent interview and ad campaign about obesity, Tyson explained that after his fighting career he let himself go and became extremely overweight. He described a period where he would “eat anything,” including a quarter of ice cream every hour, and during that time his weight climbed to about 345 pounds. This was not tied to a specific fight or training camp; it was a post- retirement low point in his life, both physically and mentally.

How that compares to his prime

During his peak as heavyweight champion in the late 1980s and early 1990s, Tyson typically weighed in the 215–240 pound range, much leaner and highly conditioned. For example, he was around 221 pounds when he became the youngest heavyweight champion, and his prime fighting frame was built for explosive speed and power rather than sheer bulk.

Why this is trending now

The “when was Mike Tyson 345 pounds” question is trending because of renewed coverage of his comments about obesity and mental health, including his admission that at that weight he “wanted to kill himself.” Those remarks have been shared widely in news pieces and forums in early 2026, especially as he speaks out in support of new anti-obesity and nutrition initiatives.

Quick facts (for context)

  • Prime fighting weight range: about 215–240 pounds.
  • Youngest heavyweight title win: roughly 221 pounds on the scales.
  • Heaviest reported weight: about 345 pounds, years after retirement, during a severe health and mental health crisis.

Information gathered from public forums or data available on the internet and portrayed here.