Calcium's Importance in Body

Calcium takes its place among the essential elements, numbering 21, that are pivotal for human well-being. However, its capacity to promote health isn't effective when examined in isolation. To exemplify, the body's utilization of calcium relies heavily on maintaining adequate levels of vitamin D.

Two types of calcium are in existence: one firmly bound within bones, while the other, a more accessible variant, resides on the surfaces of bones.

The skeletal system operates as a reservoir of minerals for the body. The lion's share of the body's calcium, approximately 99%, finds its home within bones and teeth, imparting structural support. The remaining 1% is distributed within bodily fluids both within cells and outside them. In instances of low blood calcium levels, the body taps into these reserves within the skeleton, then replenishes bone calcium as required.

A consistent supply of calcium remains indispensable throughout a lifetime, gaining added significance during phases of growth, pregnancy, and lactation.

Calcium assumes a pivotal role in the secretion of hormones and enzymes, facilitating effective neurotransmitter functioning, and contributing to the contraction of muscles and blood vessels.

Within the bloodstream, the concentration of calcium typically ranges from 2.25 to 2.5 mmol. Approximately 40-45% of this quantity forms bonds with plasma proteins, about 8-10% forms complexes with ions like citrate, and roughly 45-50% exists in the form of free ions.

Approximately 10-40% of dietary calcium gets absorbed in the small intestine, a process facilitated by vitamin D. In the presence of a deficiency, the body enhances its absorption of calcium.

In essence, the importance of calcium in the human body transcends its mere presence, encompassing intricate interactions and diverse roles crucial for overall well-being.
Calcium's Importance in Body