You inhale O₂ and exhale CO₂ Therein lies the secret to weight loss

MyCarbonTracker calculates how many carbon atoms your body gains and loses every day.

Enter your age, gender, weight and height and it will calculate how much carbon you exhaled every minute.

Log your physical activity and it calculates the the total weight of all the carbon atoms you exhaled in the 24 hours from midnight to midnight. Complete the food diary and find out if you lost or gained weight that day.

When you lose weight, where does it go?

Most people believe fat gets converted into energy or heat during weight loss. Some think it turns into muscle or ends up in the toilet. Even the doctors, dietitians and personal trainers surveyed for this British Medical Journal study had these misconceptions The truth is that fat is converted to carbon dioxide and water. We exhale the CO₂ and the H₂O is excreted the usual way.

All the macronutrients in the food you eat are converted to CO₂ and H₂O. The word, ‘carbohydrates’, was coined in the 1800’s by biochemists and literally means ‘hydrated carbon’. You eat and digest them, and then breathe all the carbon atoms back out. The same goes for fat and alcohol. Protein is converted to carbon dioxide and water too, plus a tiny whiff of urea and a wisp of sulfate, which you pee out as urine.

A more intuitive way to balance your diet

It all makes sense when you think about. Oxygen rushes into your lungs and carbon dioxide rushes back out. Two atoms enter your body, three atoms leave. The carbon atoms in the CO₂ we breathe out make expired air heavier than the air we inspire. Always.

All the carbon atoms you exhale as CO₂ came from food and all food is made of carbon atoms. Eat less carbon atoms than you exhale and you will lose weight. Eat more and you’ll gain weight. It’s that simple.

Use MyCarbonTracker to find out:

  • How much carbon you exhale per minute at rest
  • How much extra carbon you exhale during exercise
  • What activities produce the most CO₂
  • How much carbon there is in any food item
  • How it takes you to exhale a carrot, a cookie, a can of Coke, a crêpe, a glass of cabernet sauvignon, a bowl of carbonara or anything else you can think of
  • How much carbon you gain and lose every day

Coming here December 2021

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