Likely. It probaby wasn't the only thing though. The high amounts of sugar, weird fasting habits, drug use, extreme stress he put himself in, and his arrogance in ignoring sound medical advice might have all helped do him in from what I gleaned from his biography. His pancreas could only take so much apparently.

I think the actor doing Jobs had some pancreatic problems related to eating like Jobs.

Don't quote me on that, please double check.

Ashton Kutcher landed in hospital after following Steve Jobs's fruitarian diet

https://www.theguardian.com/film/2013/jan/28/ashton-kutcher-...