Fructose also has different glycemic profile - it doesn't trigger the same big spike is blood sugar that glucose does. It has to be metabolized by the liver first, which is the rate-limiting step. Although, too much can lead to a cirrhosis-like condition called non-alcoholic fatty liver disease [1]. Sugar is bad, even fructose.

With that in mind, there's no such thing as a minimum required daily intake of carbohydrates.

[1] https://en.wikipedia.org/wiki/Non-alcoholic_fatty_liver_dise...