From what I can recall, Dr Unwin (known as Southportgp here on this forum) actually tried out his sugar in carbs ideas here. He started a thread showing images of different foods and their sugar content. I think it was piles of sugar cubes back then, rather than teaspoons of sugar. He even asked for feedback and adjusted his information after collective member input.
A lovely, helpful, positive member.
I have just had a look for both his profile and his list of threads, but came up empty. So he may have deleted his profile for professional reasons, or the thread may have been lost in one of the site upgrades, but I am sure I won't be the only one to remember it. I believe
@DCUKMod contributed to the sugar cube thread too.