1 Peter 2:2
"Like newborn infants, long for the pure spiritual milk, that by it you may grow up into salvation".
I quote this verse because it has the theme of my answer- the idea of growing up, which starts with a newborn progressing in some way.
"...If anyone eats of this bread, he will live forever".
To grow up into salvation might be to progress from milk to bread/phage/i.e.eating bread is normal eating.
Next in this progression, I suggest, we might put "trogo/feeds":
Strong's Exhaustive Concordance-Trogo-"Probably strengthened from a collateral form of the base of trauma and tribos". [Tribos- a rut worn by regular use; showing mature development].
Thayer-Trogo; to gnaw, crunch, chew raw vegetables or fruits [ as nuts or almonds].
My comment: Trogo appears to have some association with being able to cope with hard problems with, I suggest, the wisdom of maturity.
Vine's warns against making too much of a progression from phage/eat to trogon/feeds, and quotes John 13:18
"...He who ate my bread has lifted his heel against me". [ate/trogon].
My comment: Someone who lifts their heel to kick at Jesus is not going to find chewing His truth at all palatable.
I'm sure Vine's warning has a point to it, but the idea of seeing no progression from "phage/eat" to "trogon/feeds", seems to be missing out on various echoes of meaning.