Thanks for the link. I had no idea. Up until 2yrs ago, it appears that the WHO recommend up to 50g of sugar per day and recently reduced that to half that.
I still think there is a lesson to be learned. If we can assume his calorie intake remained the same (which he claims, but given your link, who knows), we can say that the source of the calories matters. I've met a few people who only subscribe to calories in vs calories out.
By keeping his calorie intake the same but replacing all foods with those containing added sugar, he really tipped the scale. I suspect with more calories he might have gained some weight but would feel better and not have that liver issue.
I've never seen an honest documentary on nutrition.
I still think there is a lesson to be learned. If we can assume his calorie intake remained the same (which he claims, but given your link, who knows), we can say that the source of the calories matters. I've met a few people who only subscribe to calories in vs calories out.