An overwhelming majority of what we eat is made from plants and animals. This means that composition of our almost entire food is chemicals from the realm of organic chemistry (carbon-based large molecules). Water and salt are two prominent examples of non-organic foodstuffs - which come from the realm of inorganic chemistry. Beside some medicines is there any more non-organic foods? Can we eat rocks, salts, metals, oxides… and I just don’t know that?
In recent years, activated charcoal.
(Because many people apparently don’t know this: Don’t eat activated charcoal if you take any medication, it can render your medication ineffective)
Edit: Wait, I’m dumb, charcoal is very much carbon-based.
I think that it still fits. People don’t usually consider amorphous carbon, diamonds, graphite or fullerene as “organic”, even if carbon-based.
I have to admit, chemistry has been a while and I don’t remember the exact definitions of organic vs inorganic chemistry, so I just went off the “carbon-based” in the OP.
The textbook definition is something like “carbon covalently linked to other junk”. (The other junk is usually hydrogen, nitrogen, oxygen, sulphur.) So it usually excludes [macro]molecules made exclusively of carbon, like those.