Which one of the following Cancer is associated with a High Fat diet?

RRB Staff Nurse Kolkata-2015

Medical & Surgical Nursing

Easy

Appeared in: RRB Staff Nurse Kolkata-2015

Explanation

Colon cancer has a well-established association with diets high in fat and low in fiber.
High fat intake increases the production of bile acids. Gut bacteria metabolize these into secondary bile acids, which are carcinogenic and can promote tumor growth in the colon.
Diets high in fat are often low in fiber. Low fiber intake increases intestinal transit time, prolonging the colon's exposure to potential carcinogens.
Obesity, which is often linked to a high-fat diet, is also a significant risk factor for colon cancer through mechanisms involving insulin resistance and inflammation.

Option A: While obesity (a possible result of a high-fat diet) is a risk factor, the primary risks for ovarian cancer are genetic (e.g., BRCA mutations) and reproductive factors like nulliparity and uninterrupted ovulation.
Option B: The most significant risk factor for lung cancer is cigarette smoking, which is responsible for approximately 90% of cases. Dietary factors have a much weaker association.
Option D: The primary risk factors for liver cancer are chronic viral infections (Hepatitis B and C) and cirrhosis from any cause, including heavy alcohol use. A high-fat diet contributes indirectly, mainly by causing obesity and non-alcoholic fatty liver disease (NAFLD), which can lead to cirrhosis.

Visual 1: Infographic: A visual showing the dietary risk factors for colorectal cancer, highlighting high-fat foods, processed meats, and low-fiber foods.
Visual 2: Diagram: A flowchart illustrating the mechanism of how a high-fat diet leads to the formation of carcinogenic secondary bile acids in the colon.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Dietary risk factors for cancer as background academic context rather than a clinical decision trigger.
Nurses are at the forefront of patient education regarding lifestyle modifications for cancer prevention. This includes providing clear, evidence-based dietary advice.
Understanding the link between diet and colon cancer empowers nurses to effectively counsel patients on the importance of a balanced diet, weight management, and regular exercise.
Promoting adherence to colorectal cancer screening guidelines (e.g., colonoscopy, stool-based tests) is a critical nursing intervention, as early detection significantly improves outcomes.

How to Approach the Question

First, identify the core of the question: it asks for the cancer most associated with a specific dietary factor (high-fat diet).
Recall the primary, most significant risk factors for each cancer listed in the options.
For Lung Cancer, the primary risk is smoking.
For Liver Cancer, the primary risks are Hepatitis B/C and cirrhosis.
For Ovary Cancer, the primary risks are genetic and reproductive history.
For Colon Cancer, major risk factors include diet (high fat, low fiber) and lifestyle.

Concept Tested & Keywords

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