What are the Challenges in Nutrition Epidemiology?
One of the main challenges in nutrition epidemiology is the accurate measurement of dietary intake. Self-reported dietary data is often subject to recall bias and underreporting. Additionally, the complexity of the human diet, which includes interactions between various nutrients, makes it difficult to isolate the effects of individual dietary components. Another challenge is the long latency period of many diet-related diseases, which can make it hard to establish causal relationships.