Word definitions
ubiquitous (adj.): being sold, being available for purchase
additives (n.): (usually artificial) colourings, flavourings, preservatives, etc.
shelf life (n.): the time in which a product can be safely consumed (before going bad)
milestone (n.): an important step in a process
skyrocket (v.): rise sharply
a thing of the past (phrase): something that no longer exists or is no longer relevant
[be] all about… (idiom): mainly focused on …; … is the main point
admittedly (adv.): to be honest, [one] must admit that
-ish (suffix): (in this case) added to the end of adjectives to mean ‘somewhat’
concern (n.): something someone is worried about
perishable (adj.): has a short shelf life