Ray Peat in his articles claims that fructose is more thermogenic and is better at stimulating thyroid than Glucose/Starch. He goes as far as to say that Fructose stimulates T4 to T3 conversion much better than glucose and that fructose is less likely to be stored as fat.
Is he right about fructose being more thermogenic, increasing T3 and metabolism?
Ray Peat is a brilliant researcher – but I guess you could do a temperature test on yourself and see what raises YOUR body temperature better – and longer!