These ingredients hold the power to truly transform your body, not to mention lengthen your life. The secret is their magical "MUFA" (Aka good fat!)

To the ancient Greeks, olive oil was liquid gold. For the Aztecs, chocolate was sacred. Almonds were prized by Egypt's pharaohs, and avocados have symbolized fertility for centuries. These can't-live-without-'em foods share more than history; they also share unique health properties. They're packed with monounsaturated fatty acids (also known as MUFAs, pronounced MOO-fahs), those good-for-you fats that protect you from chronic disease and, according to new research, can help you lose fat, specifically around your middle. That's why they're at the heart of the Flat Belly Diet, a unique Prevention-tested weight loss plan.

There are five major categories of MUFAs: (1) oils, (2) nuts and seeds, (3) avocado, (4) olives, and (5) chocolate. Eating one serving of any of these at every meal will help reduce your accumulation of dangerous belly fat; control your calorie intake and you'll lose inches and pounds, too--especially around your waistline. These mouth-watering recipes make it easy. Each portion contains high levels of MUFA, plus serving suggestions that allow you to create a meal that contains around 400 calories--enough to control your hunger and boost your energy without exceeding your daily needs. You can easily fit these meals into the Flat Belly Diet menu plans, but even if you're not following the diet, you can still enjoy the rich flavor of MUFAs and their numerous health benefits. For centuries, they've been hard to resist.

1. Oils

Pick your MUFA: Canola oil, flaxseed oil, olive oil, peanut oil, pesto sauce, safflower oil, sesame oil, soybean oil, sunflower oil, walnut oil

Use them like this: Stir-fry with sesame, peanut, or canola oil; pan-fry in walnut or olive oil; spread pesto on a sandwich, drizzle it over soups or grilled foods, or toss it with rice or pasta; add walnut, sesame, or olive oil to marinades; cook with safflower, soybean, or sunflower oil; use flaxseed oil in salad dressings (flaxseed oil cannot be used for cooking)

2. Nuts & Seeds

Pick your MUFA: Almonds, almond butter, Brazil nuts, cashew butter, chunky natural peanut butter, dry-roasted cashews, dry-roasted peanuts, dry-roasted sunflower seeds, hazelnuts, macadamia nuts, pecans, pine nuts, pistachios, roasted pumpkin seeds, smooth natural peanut butter, sunflower seeds, sunflower seed butter, tahini (sesame seed paste), walnuts

Use them like this: Eat as a snack; sprinkle on a salad; crush and use as a crunchy topping for fish and chicken (dip fish or chicken in lightly beaten egg white to help nuts adhere); spread nut butters on crackers, bread, or fruit; stir nut butters into soups and sauces to add body and flavor

A serving equals: 2 tablespoons

3. Avocado

Pick your MUFA: Florida avocado, Hass avocado

Use them like this: Slice and serve with a salad or any entrée; mash with lime juice, salt, and pepper and serve with chips; chop and fold into store-bought salsa

A serving equals: 1/4 cup

4. Olives

Pick your MUFA: Black olives, black olive tapenade, green olives, green olive tapenade

Use them like this: Serve olives as a snack; sprinkle sliced olives on pizzas, salads, or pastas; spread tapenade on crackers or sandwiches; stuff tapenade into chicken breasts or fish fillets

A serving equals: 10 large olives or 2 tablespoons of tapenade

5. Chocolate

Pick your MUFA: Dark or semisweet chocolate chips, shavings, or chunks

Use them like this: Any way you crave!

A serving equals: 1/4 cup