Eating unsaturated fats instead of saturated fats or carbohydrates:
- lowers levels of low-density lipoprotein (LDL), the bad cholesterol, without also lowering levels of HDL (good) cholesterol
- prevents the increase in triglycerides that occurs with high-carbohydrate diets
- reduces the development of erratic heartbeats, a main cause of sudden cardiac death
- reduces the tendency for blood-flow-blocking clots to form in arteries.
Source: Eat, Drink, and Be Healthy by Walter C. Willet, MD (2001), p.60