"Nutrients
Nutrients are those organic and inorganic compounds that a living
organism must acquire from the environment to support essential life
processes, including basal metabolism, growth and maintenance of body
tissues, activity, reproduction, and maintenance of general health.
Nutrients are normally obtained by the ingestion of foods. Organic
nutrients include carbohydrates, proteins or amino acids, lipids, and
vitamins. Inorganic nutrients include minerals. Water is sometimes
included in a listing of nutrients."

scientifically speaking, calcium is both an element and a nutrient.
Few elements are found in an unreactive state, calcium is not one of
them. Ingrid


Calcium is an element not a nutrient. Comosted wood and nurse logs add
calcium, the element.