"If your diet consists of lots of sports drinks, sugar-sweetened drinks like fizzy pop and flavoured waters, or sugary foods like chocolate and cakes, it will make losing weight harder. While whole fruits and vegetables are undoubtedly good for you, they can also sometimes cause weight gain if you eat too much, as they have high levels of natural sugars in them. Low-fat food options might have high amounts of added sugar in there too, so make sure to check the food label.

Lack of sleep doesn't just cause undereye bags, a grouchy mood, and an insane craving for coffee; studies on sleep continually show that a lack of sleep means a bigger appetite and BMI. For example, in a 2002 study of over one million people, scientists found a direct correlation between less sleep and a higher BMI for anything under seven hours/night. More recently, a 2016 study published in the journal SLEEP found that sleep-deprived people reported more hunger and had a harder time resisting unhealthy snacks—even when they had had a huge meal (that supplied 90 percent of their daily caloric intake) only two hours prior. The scientists said that sleep deprivation activated a similar system that's targeted by the active ingredient in marijuana and enhances the desire for food.

Instead of satisfying your sweet tooth with some refined sugar, turn to berries and enjoy a slimmer waistline in no time. Berries are loaded with antioxidants, which can help reduce inflammation throughout the body, and research from the University of Michigan reveals that rats given a berry-rich diet shaved off a significant proportion of their belly fat when compared to a control group. Berries like strawberries, raspberries, blueberries, and blackberries are also loaded with resveratrol, an antioxidant pigment that has been linked to reductions in belly fat and a reduced risk of dementia, to boot.
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