Which of the following is a direct example of nutrigenomics?

• A. A scientist studying how a genetic mutation may increase the likelihood of lactose intolerance.
• B. A clinical trial on a new drug that may reduce blood cholesterol levels.
• C. A researcher's theory that a high-fat diet may increase the expression of genes linked with inflammation.
• D. All of the above are examples of nutrigenomics.

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the concept of nutrigenomics. Nutrigenomics is the study of how nutrition interacts with genes to influence health outcomes. It focuses on how genetic variations affect the body's response to nutrients and how nutrients can influence gene expression.
2. Step 2: Analyze each option provided in the problem. Determine whether the example aligns with the definition of nutrigenomics, which involves the interaction between nutrition and genes.
3. Step 3: Evaluate the first option: 'A scientist studying how a genetic mutation may increase the likelihood of lactose intolerance.' This example involves genetics and its impact on nutrient metabolism, which is relevant to nutrigenomics.
4. Step 4: Evaluate the second option: 'A clinical trial on a new drug that may reduce blood cholesterol levels.' This example does not directly involve the interaction between nutrition and genes, so it is not an example of nutrigenomics.
5. Step 5: Evaluate the third option: 'A researcher's theory that a high-fat diet may increase the expression of genes linked with inflammation.' This example directly involves the interaction between diet (nutrition) and gene expression, making it a clear example of nutrigenomics.