In some types of nutritional research,simply ranking subjects in categories of high,medium,or low nutrient intake is sufficient for arriving at conclusions about the role of diet in health and disease.

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In some types of nutritional research, such as observational studies, ranking subjects in categories of high, medium, or low nutrient intake can be sufficient for drawing conclusions about the relationship between diet and health outcomes. However, in other types of research, such as clinical trials, more precise measurements and control of nutrient intake may be necessary.

In Some Types of Nutritional Research,simply Ranking Subjects in Categories