Add. it's doctor Robert Lustig. He did a few presentations and seems to be focused on this particular topic of the intricacies of the various sugar molecules in the body. (For example: https://www.youtube.com/watch?v=dBnniua6-oM )
Discussion
Sounds interesting. Funny name though, I mean, literally.
Fructose is definitely poison. I don't think we really need glucose, but it at least doesn't do anything other than hurt the liver a bit and cause synthesised fats to be formed in the blood.
Fibre, on the other hand, yes, 100% fibre is needed. I recently added it to my diet and all of a sudden frequent problems with the toilet just vanished. One needs to be careful to not overdo it though, there is definitely a limit, somewhere around 2-3 teaspoons of Psyllium husk a day it can make things a little to solid. It goes really well with milk that's for sure.
Ah yeah, that's the one I forgot. The reason why fibre is so important is because it acts as a buffer for fats. The fats are insoluble in water, but dissolve rapidly in bile and in the process the fatty acids detach from the glycerol base and glycerol is laxative. So by taking fibre along with the fats, you slow down that hydrolysis of the triglycerides and this yields a more steady energy release for the body to either directly use for various tissues that need fats, or to convert it to glucose.
If you don't add fibre to your diet, you can't increase your fat intake, because it will give you the squirts at much more than about 10g in a meal, which is a piss amount of fat if you want to get energy from it. I found that around 100g of lard gave me energy all day long, combined with various kinds of fibrous plants, spinach, peas, roasted sunflower and pumpkin seeds, corn kernels, tomatoes, capsicum, carrots, broccoli, and so on.
I liked the way the 100+g fat per day diet made me feel, and I'm looking forward to getting it together again. Just been a bit busy setting up house recently, and trying to focus on building bitcoin/lightning/nostr things.