In my opinion if you’re going to use food as an analogy for asexuality you have to use candy.
Like regular food? Necessary to survive, and while it can be eaten solely because of cravings everyone gets hungry and has to eat it. But that doesn’t make sense for sex because you don’t NEED sex to survive and not everyone who has sex “craves” it.
But candy? You don’t need it and eating it is a conscious choice. AND while a lot of people crave it, not everybody does. You can also enjoy candy without craving it or being hungry for it in the first place. Eating the candy or enjoying the candy doesn’t change whether or not you craved it in the first place. And this actually makes sense when it comes to sex and asexuality; not everyone has sexual attraction so they don’t “crave the candy” in this analogy and even if they don’t experience sexual attraction they can still have and enjoy sex like they would enjoy a piece of candy. This could easily be used for aromantics too.
The food analogy just always seemed off to me so I hope this helps anyone who is looking for a better way to actually explain what it’s like to not feel something that the majority of people experience and assume everyone experiences.