Clinical Nutritionist Practice Test 2025 - Free Practice Questions and Study Guide

Unsaturated fats are considered the healthiest type of dietary fat due to their beneficial effects on heart health and overall wellness. They can be classified into two categories: monounsaturated and polyunsaturated fats. Monounsaturated fats, found in foods like olive oil, avocados, and nuts, are known to help lower bad cholesterol levels (LDL) while increasing good cholesterol (HDL). Polyunsaturated fats, which include omega-3 and omega-6 fatty acids found in fatty fish, flaxseeds, and walnuts, play essential roles in brain function and cell growth.

The health benefits of unsaturated fats are supported by numerous studies indicating that they reduce the risk of heart disease, lower blood pressure, and may diminish inflammation in the body. Additionally, they are typically liquid at room temperature, which is a sign of their molecular structure that contributes to their healthful properties.

In contrast, saturated fats, found mostly in animal products and some tropical oils, can raise LDL cholesterol levels, increasing the risk of heart disease when consumed in excessive amounts. Trans fats, often found in processed foods, are particularly harmful as they not only raise LDL cholesterol but also lower HDL cholesterol, leading to an increased risk of cardiovascular disease. Cholesterol, while a necessary