Use a calorie-needs calculator like LIVESTRONG.COM’s MyPlate app to figure out your daily calorie needs, then subtract calories to create your energy deficit. With an app like MyPlate, you can factor in your weight-loss goal, and it will tell you the exact number of calories (as well has how much fat, protein and carbohydrates) you need to reach that goal.
It’s impossible to target belly fat specifically when you diet. But losing weight overall will help shrink your waistline; more importantly, it will help reduce the dangerous layer of visceral fat, a type of fat within the abdominal cavity that you can’t see but that heightens health risks, says Kerry Stewart, Ed.D., director of Clinical and Research Physiology at Johns Hopkins.
And some emotional eaters, in an effort to feel better, are prone to reach for foods that will ignite the reward center of the brain, which tend to be the sugary, fatty, salty, hyper-palatable foods that can lead to weight gain, says Pamela Peeke, author of the “The Hunger Fix: The Three-Stage Detox and Recovery Plan for Overeating and Food Addiction.”
Make sure that the diet has been studied extensively for safety — and discuss any changes with your physician or registered dietitian before beginning a new diet. (If you don’t have a dietitian, find one in your area at the Academy of Nutrition and Dietetics website.) And do a self-check to ensure the diet fits with your own values and preferences.
Consider a weight loss program’s overall approach to food. What will you be eating every day? Does the meal plan react poorly with your food allergies or intolerances? Does the program cater to your special dietary needs, for example, if you are vegan or diabetic? If most (or even some) of the foods are not enjoyable to you, within your budget or readily available, you're going to find that plan tough to stick with.
Social conditions such as poverty, social isolation and inability to get or prepare preferred foods can cause unintentional weight loss, and this may be particularly common in older people. Nutrient intake can also be affected by culture, family and belief systems. Ill-fitting dentures and other dental or oral health problems can also affect adequacy of nutrition.
Also, while your menstrual cycle may not affect weight gain or loss, losing or gaining weight can affect your menstrual cycle. Women who lose too much weight or lose weight too quickly may stop having a period, or have irregular periods. Women who have obesity may also have irregular periods. A regular period is a sign of good health. Reaching a healthy weight can help women who have irregular periods to have cycles that are more regular. Learn more in our Menstrual Cycle section.
The risks are more long term, such as risk of nutritional deficiency (vitamin c, a, k and b vitamins) and also increased risk of bowel and possibly breast cancer cancer due to limited fibre intake. Ketosis generally isn’t recommended and it’s not exactly a state that would the body would usually be in, but it can be done safely for set periods of time.’
Opting for a simply restrictive diet is not a good idea. You need to take a good look at ingredient variety. Many diets just tell you to remove some foods completely: for example sweets or all carbohydrates. These, however, are vital to our body’s functioning. Our brain begins to stutter and our muscles are powerless without carbs. That is not how healthy weight loss works.
Physical activity helps burn abdominal fat. “One of the biggest benefits of exercise is that you get a lot of bang for your buck on body composition,” Stewart says. Exercise seems to work off belly fat in particular because it reduces circulating levels of insulin—which would otherwise signal the body to hang on to fat—and causes the liver to use up fatty acids, especially those nearby visceral fat deposits, he says.
Pros: The most consistently beneficial of all diets here, study after study shows that upping your protein intake can help significantly reduce body fat and build lean muscle. For example: Guys who ran sprint intervals, did resistance training, and ate a diet of 2.4g of protein per kg of bodyweight per day (roughly 1g per lb of bodyweight) gained 1.2kg of lean muscle and lost almost 5kg of fat in just four weeks, according to a study in the American Journal of Clinical Nutrition. If you cut calories but eat high protein, the macro can help prevent your metabolism from plummeting and help keep hunger at bay, since protein is so satiating. The study analysis also confirmed that eating a ton of protein stuff doesn’t cause you to gain weight or harm any internal systems, despite myths.
In a way, moderate-intensity physical activity is that "magic pill" a lot of people are looking for, because the health benefits go beyond keeping your waistline trim: Not only can it reduce your risk of cancer, stroke, diabetes and heart attacks, but studies have shown that physical activity can significantly improve the moods of patients with major depressive disorders.