When I got the results of my most recent cholesterol test back, I was surprised to see that my HDL-LDL ratio had gotten worse. I'm exercising regularly and eating better than ever—I even have fiber-filled oatmeal almost every day, which naturally lowers bad cholesterol. I didn't understand why this happened. My nutritionist, Katherine Tallmadge, R.D., had an interesting explanation: It turns out I've gone too fat-free! In my eagerness to cut back on unhealthy foods, I inadvertently stopped eating things that were high in healthy fat, like nuts, fish, avocado, and olive oil. The monounsaturated fats in those items would improve my ratio by increasing my good cholesterol levels. Katherine said that I should try to include at least one of the ingredients listed above in every meal and snack—in moderation of course, since they can also be high in calories. I've been missing guacamole, so I'm happy about this dietary do.