To encourage ketone production, the amount of insulin in your bloodstream must be low. The lower your insulin, the higher your ketone production. And when you have a well-controlled, sufficiently large amount of ketones in your blood, it’s basically proof that your insulin is very low – and therefore, that you’re enjoying the maximum effect of your low-carbohydrate diet. That’s what’s called optimal ketosis.
"Only doing abdominal-focused workouts, like crunches, won’t help you banish the bulge. Belly fat is simply where your body stores energy, so you need to take a whole-body approach to tackle it. HIIT training (high intensity interval training) is a great way to burn fat and get your heart rate up. Squats, burpees and treadmill sprints are all examples to try."
As we mentioned above, eating in a calorie deficit is key. Jim recommends eating 500 calories less than your total daily energy expenditure, or TDEE. This is the number of calories you burn in a day, which is based on factors like age, height, sex, and activity level. To calculate what this number is and what your calorie target should be to lose weight, use this formula. Just make sure you don't go below 1,200 calories a day for women; in a previous interview, Jim said eating any fewer calories than that can slow down your metabolism and result in negative side effects like low energy, loss of hair, hunger pangs, and a negative impact on your menstrual cycle.
If you’re trying to shed pounds, regular exercise is key. A shredding workout repeated throughout the week will help you burn serious fat, so that you can show off toned and lean muscles. We especially love this 4-minute workout, since it’s simple, yet effective. You only need to know four moves, all of which will challenge your body and raise your heart rate. Additionally, the workout incorporates highly effective high-intensity intervals, so it’s super quick. Interval training has been found to help boost your metabolism so that you continue to burn calories even after you leave the gym.
A University of Vermont study found that online weight-loss buddies help you keep the weight off. The researchers followed volunteers for 18 months. Those assigned to an Internet-based weight maintenance program sustained their weight loss better than those who met face-to-face in a support group. These are 50 easy ways to lose weight without a lick of exercise.
Which leads us to point number two: If you want to lose belly fat, you'll need to lose weight. If you stick to the following plan, you won't have to lose as much weight as you might think because your body will burn more fat for energy, but still. Reducing your body fat percentage will require losing some weight. Don't go into this thinking you won't have to lose weight, because that's the surest way to fail.
That’s because strength training helps you build muscle, which will replace body fat. In fact, strength training is one of the few activities you can do to spike the amount of calories you burn, even after you’re done with your workout. Bonus: When your metabolic rate becomes faster due to muscle growth, you’ll have a little more wiggle room in your diet if that’s something you struggle with, says Dr. Cheskin.
"Feeling stressed can wreak havoc on our bodies. It can cause our body to produce the steroid hormone cortisol, which can make you crave sugary foods that provide instant energy and pleasure. Short-term bursts of cortisol are necessary to help us cope with immediate danger, but our body will also release this hormone if we’re feeling stressed or anxious. When our cortisol levels are high for a long amount of time, it can increase the amount of fat you hold in your belly."