Calcium
Definition
Calcium is a mineral essential for building and maintaining strong bones and teeth, and it plays a critical role in nerve signaling, muscle contraction, and blood clotting.
Scientific / Technical Definition
Calcium is a chemical element with the symbol Ca and atomic number 20. It is an alkaline earth metal and is crucial for physiological and biochemical processes such as signal transduction, muscle contraction, and bone formation. Calcium ions (Ca2+) play a pivotal role as a secondary messenger in signal transduction pathways in cells.
Benefits
- Supports the development and maintenance of strong bones and teeth.
- Assists in nerve transmission and muscle function.
- Helps in blood clotting.
- May aid in the reduction of blood pressure.
- Supports metabolic processes by acting as a cofactor for many enzymes.
Examples
- Dairy products like milk, cheese, and yogurt
- Leafy green vegetables such as spinach and kale
- Fortified foods like orange juice and cereals
- Almonds
- Sardines and salmon with bones
Additional Information
- Side effects: Excessive calcium intake may lead to constipation, kidney stones, and impaired absorption of other essential minerals like zinc and iron.
- Importance: This nutrient is crucial for maintaining bone health and proper functioning of the cardiovascular, muscular, and nervous systems.
Related Terms
Last updated: 10/18/2024