A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a crystal structure. It is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition. The exact definition of a mineral is under debate, especially with respect to the requirement a valid species be abiogenic, and to a lesser extent with regard to it having an ordered atomic structure. The study of minerals is called mineralogy.
Sample minerals of a vegan diet are:
A balanced vegan diet can provide all minerals in sufficient quantities. However, vegans who do not eat certain kinds of foods should pay more attention whether they get all needed nutrients. There are two minerals that are considered the most "risky" for vegans because they are more concentrated in certain types of foods and it is easy not to get enough of them:
- Calcium – the most rich source of this mineral in a vegan diet are green leafy vegetables and certain nuts and seeds.
- Iodine – it is found most consistently only in seaweeds.