ISSA Nutritionist Practice Exam

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Study for the ISSA Nutritionist Exam with our comprehensive quiz. Featuring multiple choice questions, hints, and detailed explanations, you'll prepare effectively for your certification!

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What role does calcium play in human health?

Supports mental health
Regulates blood sugar levels
Essential for bone health
Improves skin health

The correct answer is: Essential for bone health

Calcium plays a crucial role in human health, particularly when it comes to maintaining strong bones and teeth. It is the primary mineral found in bones, and about 99% of the body's calcium is stored in them. Adequate calcium intake is essential for bone mass development, particularly during the growth phases of childhood and adolescence, as well as for preventing bone density loss in older adults, which can lead to conditions such as osteoporosis. While the other options mention important health aspects, they do not capture calcium's primary function. Mental health is influenced by a variety of factors, and while calcium is necessary for neurotransmitter release, it is not a direct supporter of mental health like it is for bone health. Blood sugar regulation is primarily managed by insulin and other metabolic processes, rather than calcium. Furthermore, calcium does have roles in skin health through its importance in cellular functions, but it is not a key factor like it is for skeletal health. Thus, the most accurate and relevant role of calcium in human health is its essential contribution to bone health.