Answer: Depletion-repletion study
Explanation:
Depletion-repletion study is the concept of describing about the certain nutrient requirement in any person. A person is subjected under experiment to know the value of particular nutrient.
Diet designed for person lacks the certain nutrient to deplete it over that particular time to achieve depletion .Then supply of that nutrient is provided till the time repletion is displayed.
According to the question, researcher wants to evaluate about nutrient deficiency which can be analyzed through depletion repletion study to determine deficiency of certain nutrients and effects.
