American Association of Family and Consumer Sciences (AAFCS) Practice Test

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Prepare for the American Association of Family and Consumer Sciences Test. Study with flashcards and multiple choice questions, each question includes hints and explanations. Get ready for your exam!

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Which nutrient is known to help lower blood cholesterol levels?

protein
carbohydrates
fiber
fats

The correct answer is: fiber

Fiber is recognized for its ability to help lower blood cholesterol levels, particularly through its soluble form. When consumed, soluble fiber binds with cholesterol in the digestive system, which facilitates its excretion from the body instead of being absorbed into the bloodstream. This process can lead to lower overall cholesterol levels, specifically low-density lipoprotein (LDL) cholesterol, which is often referred to as "bad" cholesterol. Foods high in fiber, such as oats, legumes, fruits, and vegetables, have been shown in various studies to promote heart health and contribute to cholesterol management. The regular intake of fiber is now recommended as part of a balanced diet aimed at reducing cholesterol levels and improving cardiovascular health. In contrast, while protein and carbohydrates are essential nutrients for overall health and support various bodily functions, they do not have a direct impact on lowering blood cholesterol levels in the way fiber does. Fats, depending on their type, can actually contribute to higher cholesterol levels; for instance, saturated and trans fats can raise LDL cholesterol, while unsaturated fats can have a more beneficial effect on heart health.