Weight loss, in the context of medicine, health, or physical fitness, refers to a reduction of the total body mass, due to a mean loss of fluid, body fat or adipose tissue or lean mass, namely bone mineral deposits, muscle, tendon, and other connective tissue. Weight loss can either occur unintentionally due to malnourishment or an underlying disease or arise from a conscious effort to improve an actual or perceived overweight or obese state. "Unexplained" weight loss that is not caused by reduction in calorific intake or exercise is called cachexia and may be a symptom of a serious medical condition. Intentional weight loss is commonly referred to as slimming.
Though exercise can help correct a metabolism that’s been out of whack for a long time, the grisly reality is that it may not ever go back to what it was before you gained weight. So if you’ve been overweight or obese and you lose weight, maintaining that loss means you’re probably going to have to work harder than other people, maybe for good. “The sad thing,” says Hill, “is that once you’ve been obese or not moving for some time, it takes a little more exercise to maintain. It doesn’t come back to normal.” It’s not a pretty reality to face, but coming to grips with it is important, he says, so that you won’t get frustrated when you discover that you have to do more work over the long term than your friend who was never overweight.
There’s no one perfect diet to help you slim down, but there are some basic rules. Make half your plate fruits and vegetables. Keep your protein lean and unprocessed: Choose meats trimmed of fat, and eat seafood, beans, nuts, and seeds. Replace refined grains like white bread and white rice with whole grains like multigrain bread, brown rice, and oatmeal. Special weight loss surgery may be an option if you are seriously overweight.
Carb crazy? Consider this: Refined carbohydrates, such as bread, potatoes and rice, create a surge in insulin that in turn drives down your resting metabolic rate, explains Aronne. "It's important to keep carbohydrates in your diet, but really focus on fruits, vegetables and whole grains, which have less of an effect on insulin levels," he explains. And when buying whole-grain breads and cereals, make sure the first ingredient listed is whole wheat, whole oat or cracked wheat.
Tracking calories also puts exercise in a quantifiable perspective, increasing a person's awareness regarding how much exercise is really required to counteract a 220-calorie bag of M&M's. Once a link is made between the amount of exercise that some snack equates to, many people find abstaining from that bag of chips to be the preferred option rather than performing an equivalent amount of exercise – which can lead to healthier eating habits.
Weight-loss programs are usually run by a commercial business or organization that provides weight-loss guidance. These programs may be run by a one individual, a gym, or a nationwide service. They may also sell products to accompany their program which may include exercise equipment, workout DVDs, or food and beverage items. Ideally, an effective weight-loss program should include guidance in maintaining a healthy weight after the weight-loss phase is over. The program should teach skills that help improve dietary habits, increase physical activity, and help change lifestyle habits- with an ultimate goal of long-term weight maintenance.
If you factored exercise into the equation when you used the calculator, then you should not eat more if you exercise. Your daily calorie goal (the calculator result) has already accounted for the additional physical activity. But if you did not factor in exercise when you used the calculator, and you added a workout session to your day, then the calories burned during exercise will increase your calorie deficit. If you don't eat back your exercise calories, the increased deficit will help you to lose weight faster. If you do eat back the same number of calories that you burned, then you will lose weight at the same rate as indicated in your calorie calculator result. Be careful, however, it's very easy to eat more calories than you burn after exercise. This causes weight gain, not weight loss.
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There is a substantial market for products which claim to make weight loss easier, quicker, cheaper, more reliable, or less painful. These include books, DVDs, CDs, cremes, lotions, pills, rings and earrings, body wraps, body belts and other materials, fitness centers, clinics, personal coaches, weight loss groups, and food products and supplements.
When you plan for an indulgence, it also allows you to thoughtfully select and prepare the food. Many people make their own pizzas and choose the crust and toppings, including a gluten-free crust or pasture-fed meats. They end up feeling even more satisfied because they’ve gone through this intentional, self-nurturing process. And their version usually tastes better, too!
Weight loss may help chase your blues away. Scientists are still trying to work out why, but better body image and improved sleep may be part of the reason. In one study, depressed people who were very overweight felt better after they lost an average of 8% of their body weight. Other research shows you’ll continue to feel better, even after 2 years -- as long as you keep the weight off.