Do less-ripe fruits contain fewer calories, and somehow “gain calories” as they ripen? Is energy transformed from less-digestible forms like complex carbohydrates or fibers into simpler sugars? I have long wondered about this.

He's saying they are basically sugar, so not okay.

Strawberries are a good fruit to eat.

Edit: The graph here is pretty helpful https://en.wikipedia.org/wiki/Fruit#Nutritional_value Unfortunately it doesn't show the amount of sugar in each fruit.

I'm sure you're an adult and can make your own choices, so don't take what I said as meaning "Don't eat this!". Just an observation that fruits are delicious _because_ they are so high in sugar.

I have to avoid all fruits since I am on the keto diet. My mouth waters thinking about a cantaloupe drink, but if I drank even 4oz I'd be undoing a lot of work.

I wouldn't eat fruits if I needed fiber, for that I would just add some psyllium husk to a drink.