PHD leans away from fruit because of the high fructose content. I'm wondering since unripe fruit is generally not very sweet, does it have a lower fructose content? If so, then might it be a healthier way to eat fruit? Unripe mango is a common ingredient in Latin America and Asia. Not sure what other fruits are typically eaten unripe but some suggestions here would be nice as well. Would also be nice to know if Paleo man ate fruit this way. I can't imagine that fruit was always perfectly ripe for him the entire year, as we typically eat today.
Unripe fruit is not going to be very digestible. Think about it from the perspective of the evolution of the fruit. The plant wants the fruit to be eaten only when the seeds are fully mature. As such, unripe fruit doesn't look pretty, doesn't taste good, and isn't very digestible.
Plant sugars are stored as starches then broken down into simple sugars during the ripening process, so yeah it would have less fructose, but the carbohydrates would be about the same just in the form of a complex starch or polysaccharides. The cell walls are thicker in unripe fruit too so I'd imagine that it would take longer to digest.
Raw Vegans: The Fructose Debates 0 Answers
Carbs & Fat Cycling, AM & PM timing? 3 Answers
Another fruit question 3 Answers