Difficulty: Hard

Average Score: 33%

Which of the following contribute to a healthy diet?

Rationale

They are good sources of calcium and protein, which are needed for bone and tissue growth.

Calcium and protein are essential nutrients that support the development and maintenance of healthy bones and tissues. Adequate intake of these nutrients is crucial for overall health, particularly during periods of growth and development.

A (They are good sources of iron, which increases the absorption of fat into the red blood cells) YOUR ANSWER

Iron is important for the formation of hemoglobin in red blood cells, but it does not directly increase the absorption of fat. Instead, iron's primary role is related to oxygen transport in the blood. This option misrepresents the function of iron and does not accurately reflect its contribution to a healthy diet.

B (They provide glucose, which is the only source of energy used by the brain) YOUR ANSWER

While glucose is a primary energy source for the brain, it is not the only one. The brain can also utilize ketones during periods of low carbohydrate intake. This statement oversimplifies the brain's energy sources and does not represent a comprehensive view of a healthy diet.

C (They provide thiamin, which is necessary for carbohydrate metabolism) YOUR ANSWER

Thiamin (vitamin B1) is indeed essential for carbohydrate metabolism, but this statement does not encompass the broader aspects of a healthy diet. While thiamin is important, it is just one of many nutrients needed for a balanced diet, failing to highlight key components like calcium and protein.

Conclusion

A healthy diet includes a variety of nutrients that support bodily functions, with calcium and protein being vital for bone and tissue development. While iron, glucose, and thiamin are important, they do not provide the same foundational contributions to growth and health as calcium and protein. Emphasizing diverse nutrient intake ensures optimal health and proper physiological function.

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