Are you afraid of fat? After so many years of fat being thought of as ‘bad’, it can be difficult to shake that fear. The truth is that fat is a necessary nutrient that does many important jobs in the human body, from supporting cell health to enabling the absorption of certain vitamins. Monounsaturated fats (one type of fat) have other health-promoting properties. In particular, they have been shown to lower cholesterol levels and actually decrease your risk of heart disease when eaten in moderation. So how can you include more of these healthy fats in your diet? One way is to use avocado in place of mayonnaise, which is exactly what I have done with this recipe for mayo-free avocado tuna salad….