1. She is "eating", in the sense that she's hooked up to a machine that provides nutrition to her body. Her stomach stopped working after catching covid.
2. The record for longest fast goes to Angus Barbieri in 1965 who went one year and 17 days without eating (under medical supervision). https://www.diabetes.co.uk/blog/2018/02/story-angus-barbieri...
As another commenter pointed out, this wasn't a 16 year fast, it was a 16 year hunger strike.