No such thing as "unrefined fructose" ... Once the cell walls surrounding the "SUGAR" in a fruit is destroyed, you get the same insulin response as any other sugar. The only difference with fruit are the glycaemic lowering nutrients contained within the fruit.
"unrefined fructose" is simply unscientific, sugar regardless of how a fruit mitigates the glycaemic load, eventually wrecks your blood sugar levels, causing everything from mood swings, unstable energy swings, & depression & hyper mania.
Anything which interferes with your blood sugar levels, even if consumed constantly for about a week, you're in danger of developing stuff like insulin resistance, the beginning of diabetes.
Concentrated fruits are ok, however, such as kumquats, berries, & green leaf veg.
If you want to consume fruit & veg, you'll have to research the glycaemic levels, & anti-nutrients, even then you cant digest a large portion of most fruits & veg, because of the large amounts of cellulose & the massive inability of the human body, to digest & use the nutrients in plants & vegetation, as well as herbivores can.