We don’t know enough about what is in the food we eat, for instance, did you know that garlic contains more than 2,230 other chemical components, including allicin, the organo-sulphur compound responsible for the distinctly pungent aroma of raw garlic, especially when pressed or crushed? - 123rf.com
Dark matter, the fascinating structure of the universe is a possible analogy for our food.
Anyone with any interest in astronomy would be aware that the observable matter in our skies make up less than 5% of the material making up the universe. The rest is made up of exotic stuff such as dark energy (approximately 68%) and dark matter (roughly 27%), both of which are still inexplicable and unobservable to astronomers. This roughly reflects the true state of knowledge we have about what we are really eating.