Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. If you want to start ...

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Aviv Joshua, MS, RDN, LDN, is a clinical dietitian with over 10 years of experience in healthcare. Eggs have protein that helps keep you full and control your blood sugar levels. Leafy greens are low ...

What Is a Calorie Deficit? Calories are a measure of the amount of energy in food. All the cells in your body require energy to work properly, just like a car needs fuel. They get that energy from the ...

Lindsey DeSoto, RD, is a nutrition writer, medical reviewer, and registered dietitian who helps clients improve their diet for health-related reasons. Her writing covers a variety of topics, including ...