[mr_toad]

What makes sugar different from other carbohydrates?

[Raidion]

It's really quick fuel that leads to an insulin spike that triggers more fat storage and eventually leads to insulin resistance.

[TurboHaskal]

Sugar is 50% fructose and 50% glucose. The user you mention advocates for a higher amount of fruit which has mostly fructose so my take on this is that he prefers his pancreas over his liver.

[incone123]

Eating whole fruit means you consume fiber at the same time as the sugar, so the latter is metabolized more safely.

[TurboHaskal]

Eating whole cake means you consume fat at the same time as the sugar, so the latter is metabolized more safely.

[incone123]

Could you liquidize the cake and still get that benefit?