Calcium
Definition
Calcium is a mineral that is essential for building strong bones and teeth. It also plays a vital role in muscle function, nerve signaling, and heart health.
Scientific / Technical Definition
Calcium is a chemical element with the symbol Ca and atomic number 20. It is a reactive alkaline earth metal that forms a dark oxide-nitride layer when exposed to air. Biologically, calcium is crucial for many physiological processes, including bone mineralization, signal transduction pathways, blood coagulation, and as an electrolyte in cellular fluid.
Benefits
- Supports the development and maintenance of strong bones and teeth.
- Helps in muscle contractions and prevents cramps.
- Aids in nerve signaling and transmission.
- Contributes to normal clotting of blood.
- Plays a role in maintaining a regular heartbeat.
Examples
- Dairy products like milk, cheese, and yogurt
- Leafy green vegetables such as kale and broccoli
- Fortified foods like orange juice and cereals
- Nuts and seeds, particularly almonds and sesame seeds
- Fish with edible bones, such as sardines and salmon
Additional Information
- Importance: Calcium is particularly important for pregnant and lactating women because it supports the development of the baby's bones and teeth as well as maintaining the mother's bone density.
Related Terms
Last updated: 10/19/2024