98 % of the salts used in foods is sodium chloride.
Also used are KCl (for some ill persons) and many food additives as: sodium nitrate, sodium nitrite, sodium phosphate, sodium sorbate, sodium citrate, sodium saccharinate, sodium acetate, sodium benzoate, sodium glutamate etc.
The most important is sodium chloride, NaCl. Rarely used is potassium chloride.
Other salts are used as food additives or drugs.
sea salt
Even table salt is harmful if too much is consumed.
Epsom salt can be used as a drug (internally) but it is not a food.
Examples are: sodium nitrate, silver chloride, uranyl nitrate, cobalt chloride etc.
Some calcium salts are organic, some calcium salts are inorganic.
This is not mandatory: some salts are very soluble, some salts are very insoluble.
All salts are crystallized.
Some salts are shiny.
Only some salts are insoluble.
Bamboo is edible in some forms.
Fungus and mushrooms can be eaten and some are edible but some are not.
The reed is not edible, but some species of reed have edible tuberous roots.