In my country we also eat the seeds. We leave the seeds to dry and in few days we throw them on fire and after it turns brownish we eat them hot. Its a good source of protein and it tastes good atleast for us.
High in ptotein? I guess for a fruit, it is. I thinks its less than 2 grams of protein per 100g of fruit. Gotta eat tons of jackfruit for protein. It definitely a good source of fiber tho!
Sweet and caramel-ish with citrusy smell, the taste is quite strong, personally I don't really like it (I prefer sweet fruit with light taste like watermelon or strawberry). But I do like boiled jackfruit seed, it taste somewhere between potato and pumpkin, very delicious!
I've heard plenty of ppl say that jackfruit is quite good but I just can't get over the smell. It's like used baby diapers. In southeast Asia, some businesses will even put up "no jackfruit allowed" signs because they stink up the buildings so much.