NCSF Sport Nutrition Specialist Certification (SNS) Practice Test 2025 - Free Sport Nutrition Specialist Practice Questions and Study Guide

The combination of vitamins B6, B9, and B12 is linked with heart health, particularly due to their roles in homocysteine metabolism. Elevated levels of homocysteine in the blood have been associated with an increased risk of cardiovascular diseases. B vitamins play a critical role in converting homocysteine into other beneficial substances in the body, thereby potentially reducing the risk of heart disease.

Vitamin B6 (pyridoxine) is involved in amino acid metabolism and the formation of neurotransmitters, while vitamin B9 (folate) is crucial for DNA synthesis and repair. Vitamin B12 (cobalamin) is essential for nerve function and the production of red blood cells. Together, these vitamins can help in reducing homocysteine levels, supporting overall cardiovascular health.

While other combinations listed may have their own health benefits, they don’t specifically target the risk factors related to heart disease in the same way that B6, B9, and B12 do. For example, vitamins A, C, and E are antioxidants that can protect cells from oxidative stress, but they do not directly influence homocysteine levels. Similarly, vitamins D, K, and B12 play different roles in the body, primarily