How many calories will a person lose in a day if he does nothing?

One of my professions is a personal trainer. Several clients passed through my hands after anarexia. I remember I had a fashion model who began to lose weight at a weight of 74 kilograms and dropped the weight to 36. Naturally she fell ill with anarexia, she was cured, but she could not even gain weight 100 grams. Whoever she turned to in Moscow ... went through a lot of dietitians and fitness trainers ... I fed her 8 kilograms 400 grams while working with her. The main thing that I adhere to in my work is that I do not count calories! I am counting grams. I advise others to do this too. Working with calories is like making a Russian speaker guess crossword puzzles in French and the Russian speaker won't know French. Believe me, counting grams is several orders of magnitude easier and easier. In my case, I know that if I ate 500 grams of food, then I gained 500 grams! Why would I count my 500 grams in calories eaten? Another thing is what I ate, carrots with cabbage, or potatoes with bacon. So, based on my calculations, the average person, if he does not do anything, loses weight in an hour from 40 to 60 grams, depending on size and age. Now add going to the toilet here and we get a figure equal to about 2-2.5 kilograms. If you still bother with calories, then given that in this situation, you are unlikely to break down more than 30 grams of fat, and a gram of fat is equal to 9 calories, then about 270 calories per day. But once again I draw your attention, no need to be perverted, go to grams.

We must try to reduce this unforgivable waste of 1200. Do not think, do not move, only waddle from side to side, do not talk. Blink less, but better close your eyes.

Each has its own individual number. Formulas for calculating basal metabolic rate are very approximate. As a rule, the more weight, the more kcal a person spends. However, there are many factors that have an effect on basal metabolic rate, such as a deficiency in thyroid hormones, low muscle mass, etc. You can check using indirect calorimetry, but a reliable result can only be obtained if all the rules of research are followed.

This is the basic amount of calories that the body spends per day on physiological needs (there are a bunch of calculators on the Internet) + you need to take into account TEF (thermal effect of food - the number of calories spent on digesting food consumed), that is, another plus, about 10% from the total calorie content of food eaten. Usually calculators take TEF into account. I recommend Ketch McArdle's formula.

This is called basal metabolic rate and is considered very simply: approximately 1 kilocalorie per kilogram of body weight per hour for men and 0.9 kilocalories per kilogram of body weight per hour for women.
Say, if I am a man weighing 80 kilograms, then lying all day on a bed in a warm apartment, not even bothering to eat, I will spend 1 * 80 * 24 = 1920 per day. This, I repeat, is an approximate value - everyone has a different metabolism.

When a sports doctor gave me such a test many years ago, it was 1200 kcal. I was told that my body spends so much just to maintain life, even if I just lie on the couch all day. The main energy in the body is spent elementary on heating the body, maintaining a normal temperature, if I'm not mistaken. Therefore, in hot countries less want to eat :) But the figure is individual, and of course, approximate. They conducted various tests for me, took heart rate measurements at different loads and so on, measured the body mass composition ... in general, if you are very interested, you can easily do such a test yourself.