The collectable health item in Yooka-Laylee doesn't necessarily need to be insects for Yooka to consume only because he's a chameleon which primarily eats them in real life. Banjo in B-K had an appropriate health item for him to pick up in the form of a honeycomb, which real bears do consume by tearing beehives apart to get to the honey inside. While Conker in CBFD didn't have any nuts for him to collect in order to restore his health, rather he ate chocolate bars which is pretty far away from the diet of a real squirrel... To put it mildly. Now, chameleons in captivity can eat other food like fruit just fine (granted, only if you're wary of a few things like don't feed it citric fruit, the seeds/cores, etc). So, rather than going with the straightforward idea that Yooka needs to eat insects to recover lost health, I propose a different idea in that he needs to pick up fruit instead. Also, for some people there may ring a bell upon reading this suggestion of mine. Well, that's because it has a slight similarity with scrapped idea from Banjo-Kazooie. Only the main difference in Gregg's version is that the fruits were going to reward you with a jiggy after you had collected enough of them, and paid a visit in one of the 5 different "fruit houses" - instead of just function as a basic health item.