You should already be following a diet to get lean, and should therefore be aware of how much you’re eating. But to remove any guesswork, we’ll give you some numbers to hit for the week: Consume one gram of protein and 10–11 calories for every pound of your body weight; 20% of those daily calories should be from fat, and the remainder from carbs. (Remember to first subtract the protein calories you’re also eating from the total allowed before you calculate the number of carbs.)
A 2012 study also showed that people on a low-carb diet burned 300 more calories a day – while resting! According to one of the Harvard professors behind the study this advantage “would equal the number of calories typically burned in an hour of moderate-intensity physical activity”. Imagine that: an entire bonus hour of exercise every day, without actually exercising. A later, even larger and more carefully conducted study confirmed the effect, with different groups of people on low-carb diets burning an average of between 200 and almost 500 extra calories per day.
Rather than a long and low-intensity cardio workout, try the HIIT method of cardio: intense, fast-paced intervals that leave you completely exhausted after only a 20- to 30-minute session. This form of cardio training increases the afterburn effect, allowing your body to continue burning calories long after your workout is over. You can rotate between 30 seconds of your favorite exercises, with rest in between, as long as they work different muscle groups—such as squats, push-ups and kettlebell swings.
A 2014 Harvard study found that men who did twenty minutes of daily weight training had less of an increase in age-related abdominal fat compared with men who spent the same amount of time doing aerobic activities, and other studies have shown similar levels of success when guys hit the gym to cut down on fat. The implication: Guys can cut belly fat most efficiently with weight training.
To lose body fat, you've got to hit the weights, and you're going to want to strength train a minimum of two times a week. If you're wondering which exact exercises to do, Dr. Harrison recommends compound exercises. Why? Because they're multijoint movements that work large groups of muscle and elicit a greater energy expenditure. This means that you have to work harder to perform them, and as a result, your body will burn more calories and fat. Exercises like barbell back squats, deadlifts, walking lunges, bench press, and pull-ups are all examples of compound exercises.
"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.