Which two dietary components can help lower cholesterol levels?

The correct answer is the combination of soluble fiber and omega-3 fatty acids.

Soluble fiber helps reduce cholesterol levels by binding to bile acids in the digestive system, which forces the body to use cholesterol to replace the bile acids. This process effectively lowers the levels of LDL cholesterol (often referred to as "bad" cholesterol) in the body. Foods rich in soluble fiber include oats, legumes, fruits, and vegetables.

Omega-3 fatty acids are another key dietary component known for their heart-healthy benefits. They can help lower triglyceride levels and may also reduce overall levels of cholesterol when consumed in sufficient amounts. Omega-3 fatty acids are found in fatty fish, flaxseeds, walnuts, and chia seeds.

Other options, such as the combination of saturated fats and refined sugars, typically have a negative impact on cholesterol levels by increasing LDL cholesterol and contributing to higher cardiovascular risk. Protein and complex carbohydrates can be part of a balanced diet, but they do not directly contribute to lowering cholesterol. Similarly, while vitamin C is important for overall health, it is not specifically known for lowering cholesterol levels.

Therefore, the inclusion of soluble fiber and omega-3 fatty acids in the diet is significantly supported by research for their roles in improving cholesterol profiles