A scoop of guacamole is one of the most effective fat-burning, hunger-squashing snacks known to man. Not only are avocados rich in vitamin B6—which directly counteracts the belly-fat-building stress hormone, cortisol—they’re also full of monounsaturated fat. This healthy fat may actually prevent body fat distribution around the belly by down-regulating the expression of certain fat genes, according to research in the journal Diabetes Care. These same satiating fats may also be the reason behind another study that found people who ate half a fresh avocado with lunch reported a 40 percent decreased desire to eat for hours afterward.
The leafy green is jam-packed with energy-boosting nutrients such as vitamin A, iron, and folate. It can also reduce your appetite—helping to curb your calorie intake and encourage your body to start burning fat—thanks to natural compounds called thylakoids. Swedish researchers found that over three months, women who consumed a five-gram thylakoid supplement from spinach reported a 25 percent reduction in hunger and cravings and significantly more weight loss (11 pounds) than the control group!
Kickstart your morning—and your metabolism—with this warming spice. Cinnamon contains powerful antioxidants called polyphenols that are proven to alter body composition and improve insulin sensitivity (which means it keeps blood sugar stable, preventing hunger-inducing spikes and crashes). Japanese researchers found that mice who ate a daily helping of cinnamaldehyde (the ingredient that gives cinnamon its flavor) lost belly fat, while those who skipped the spice did not. Add it to your overnight oats or sprinkle some in your coffee to reap the benefits.
Sunny side up, scrambled, hard-boiled, or fried—it doesn’t matter. A pan, spatula, and carton of eggs are all you need to fry some serious flab. Eggs are one of the best sources of choline, a major fat-burning nutrient that helps turn off the genes responsible for belly-fat storage. Bonus: eggs are a great source of lean protein, which can set the fat-burning pace for your entire day when eaten for breakfast. In a study of 21 men published in the journal Nutrition Research, half were fed a breakfast of bagels while half ate eggs. The egg group were observed to have a lower response to ghrelin, were less hungry three hours later and consumed fewer calories for the next 24 hours!