How is burned fat removed from the body

They estimate that an average person loses at least g of carbon every day and roughly a third of that occurs as we sleep. Replacing one hour of rest with moderate intensity exercise, such as jogging, removes an additional 40g of carbon from the body, raising the total by about a fifth to g. So to keep weight off you need to balance what you eat against what you burn off and exhale. Duane Mellor of the British Dietetics Association likened fat metabolism to burning petrol in a car - it makes heat and drives movement, but also creates and releases waste.

Dr Tom Barber, associate professor of endocrinology at Warwick University and University Hospitals Coventry and Warwickshire, said the work was interesting and novel, and busted the misperception that fat is simply burned off as energy - something that even many doctors think. Late night food 'breeds weight gain'. Obese lose up to eight years of life. Every carbohydrate you digest and nearly all the fats are converted to carbon dioxide and water.

The same goes for alcohol. Protein shares the same fate, except for the small part that turns into urea and other solids, which you excrete as urine. The only thing in food that makes it to your colon undigested and intact is dietary fibre think corn. But energy is a notoriously confusing concept, even among health professionals and scientists who study obesity. The reason we gain or lose weight is much less mysterious if we keep track of all the kilograms, too, not just those enigmatic kilojoules or calories.

According to the latest government figures , Australians consume 3. Of that, grams is solid macronutrients, 23 grams is fibre and the remaining 3kg is water.

Read more: Why we regain weight after drastic dieting. When you dig into your meal or grab a quick bite on the way to work, the food you eat goes toward fueling your body. As your favorite or not so favorite foods pass through your digestive system, your body absorbs nutrients and uses them to power you through your daily routine.

The remaining waste heads out through your bladder or intestines. But what happens if you get busy and skip a meal, or have to exert more energy than you devoured at your last snack session? Fat acts like a battery, ready to provide energy for you when you need it the most.

But what actually happens when you dip into those strategic reserves? Humans have two kinds of fat cells, brown fat cells and white fat cells, the latter of which are far more common. Answer From Edward R. With Edward R.

Thank you for Subscribing Our Housecall e-newsletter will keep you up-to-date on the latest health information. Please try again. Something went wrong on our side, please try again. Show references Metabolism. In: Medical Physiology. Elsevier; Accessed March 27, Murphy J, et al. Factors associated with adipocyte size reduction after weight loss interventions for overweight and obesity: A systematic review and meta-regression.