Calcium News and Research

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Calcium, the most abundant mineral in the body, is found in some foods, added to others, available as a dietary supplement, and present in some medicines (such as antacids). Calcium is required for muscle contraction, blood vessel expansion and contraction, secretion of hormones and enzymes, and transmitting impulses throughout the nervous system. The body strives to maintain constant concentrations of calcium in blood, muscle, and intercellular fluids, though less than <1% of total body calcium is needed to support these functions.

The remaining 99% of the body's calcium supply is stored in the bones and teeth where it supports their structure. Bone itself undergoes continuous remodeling, with constant resorption and deposition of calcium into new bone. The balance between bone resorption and deposition changes with age. Bone formation exceeds resorption in growing children, whereas in early and middle adulthood both processes are relatively equal. In aging adults, particularly among postmenopausal women, bone breakdown exceeds formation, resulting in bone loss that increases the risk of osteoporosis over time.
Dopamine-releasing brain cells shed light on Parkinson’s disease

Dopamine-releasing brain cells shed light on Parkinson’s disease

Research highlights link between aquatic biodiversity and micronutrient-rich diets

Research highlights link between aquatic biodiversity and micronutrient-rich diets

Unique mini-microscope enables imaging of brain activity in freely moving mice

Unique mini-microscope enables imaging of brain activity in freely moving mice

Plants use signaling molecule to regulate their water balance

Plants use signaling molecule to regulate their water balance

Ancient shells provide clues to better predict future warming and ocean acidification

Ancient shells provide clues to better predict future warming and ocean acidification

Vegan diet leads to poorer bone health, shows study

Vegan diet leads to poorer bone health, shows study

Neuronal and glial circuits form loosely coupled super-network within the brain

Neuronal and glial circuits form loosely coupled super-network within the brain

Adequate calcium, vitamin D intake should be ensured when adopting an increasingly plant-based diet

Adequate calcium, vitamin D intake should be ensured when adopting an increasingly plant-based diet

Scientists resolve a key climate change mystery

Scientists resolve a key climate change mystery

New technique replicates bone tissue complexity and bone remodeling processes

New technique replicates bone tissue complexity and bone remodeling processes

Study shows why obese mothers tend to have children susceptible to metabolic diseases

Study shows why obese mothers tend to have children susceptible to metabolic diseases

Study: Vegan diet has broad effect on children's metabolism

Study: Vegan diet has broad effect on children's metabolism

New electrochemical technology helps produce ammonia-based fertilizer from urea

New electrochemical technology helps produce ammonia-based fertilizer from urea

Coastal protection provided by coral reefs will erode by end of century

Coastal protection provided by coral reefs will erode by end of century

Research may lead to new strategies for calcium malabsorption

Research may lead to new strategies for calcium malabsorption

New molecular imaging strategy helps observe the sperm selection process

New molecular imaging strategy helps observe the sperm selection process

Microbes could make phosphorus trapped in soils more accessible to crops

Microbes could make phosphorus trapped in soils more accessible to crops

Study shows how drug-like small molecules regulate the activity of ion channels

Study shows how drug-like small molecules regulate the activity of ion channels

New study shows patients' own stem cells can be used to grow new bone

New study shows patients' own stem cells can be used to grow new bone

MIT chemists determine molecular structure of SARS-CoV-2 protein

MIT chemists determine molecular structure of SARS-CoV-2 protein