Calcium: taste, intake, and appetite

Area of Science:

• Physiology
• Behavioral Neuroscience
• Nutritional Science

Background:

• Calcium homeostasis is crucial for numerous physiological processes.
• Research on calcium intake and appetite has been fragmented across disciplines.
• Understanding the behavioral aspects of calcium regulation is essential.

Purpose of the Study:

• To review and synthesize research on the sensory and behavioral components of calcium homeostasis.
• To explore the physiological mechanisms underlying calcium appetite.
• To discuss the potential existence of a calcium appetite in humans.

Main Methods:

• Review of existing literature on gustatory electrophysiology, ethology, nutritional studies, and behavioral experiments.
• Analysis of physiological signals, including taste perception, blood calcium levels, and hormonal actions.
• Consideration of influences such as reproductive and adrenal hormones and learning.

Main Results:

• Calcium homeostasis involves complex sensory and behavioral elements, previously studied independently.
• Emerging research identifies physiological mechanisms for calcium intake, including taste changes and hormonal signals.
• Factors like reproductive hormones, adrenal hormones, and learning also impact calcium intake.

Conclusions:

• A behavioral component of calcium homeostasis is well-documented across various species.
• The integration of sensory, physiological, and behavioral data provides a foundation for future research.
• The existence of a calcium appetite in humans warrants further investigation.