A study is performed to determine dietary source of vitamin A it is observed that some commonly available foods have more vitamin A than others. Which of the following is most likely to provide the best source for vitamin A in the diet?

Correct Answer: D

Rationale: Carrots are rich in beta-carotene (provitamin A), a superior source of vitamin A compared to milk, bread, or meat, making D correct.

Correct Answer: A

Rationale: Folate is critical before and during early pregnancy (at conception) to prevent neural tube defects, making A correct.

Correct Answer: C

Rationale: Metabolism encompasses all bodily physical and chemical processes, making C correct.

Correct Answer: C

Rationale: Adults need 20-35 g of fiber daily for digestive health, per dietary guidelines, making C correct.

Correct Answer: C

Rationale: Malunggay (moringa) leaves are a rich plant source of iron, making C correct.