Stolen from Reddit
https://www.reddit.com/r/dataisbeautiful/comments/1ftmkwt/oc_foods_cost_vs_caloric_density/
But I loved it. Also this has Shrimp removed, because it was on the OG chart due to an error and this is an updated version.
EDIT: Here is one for protein! https://www.reddit.com/r/budgetfood/comments/1fp2ytb/foods_cost_per_gram_of_protein_vs_protein_density/#lightbox
Yeah corn syrup be about a couple of cents on this plot.
It would be much more interesting to see this in terms of a combination of protein, unsaturated fats And micronutrients.
Like which combination is the cheapest of all?
I suspect it would be something like: