When you lose weight by burning fat, where does the fat go? How does it get out? Most people think we sweat it out, but no: we **breathe** it out. Your body uses carbohydrates for energy, and when you dont eat enough, your body burns fat. Fat is stored as triglycerides, which are made of carbon, hydrogen and oxygen and metabolized into carbon dioxide and water. When you lose 1kg of weight, you literally breathed out 840g of weight as CO2. The remaining 160g turns into H2O and is peed out. GM.

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People always ask me why I’m hyperventilating and I don’t know why I always have to explain to them that I’m trying to lose weight. 😂
Are you telling me that all the obese people are good for the climate, as they are a natural storage of CO2? 🤣🤣🤣
I thought about this a lot, too. What if we could make a device that does dialysis in a way that can bypass burning carbs? Hook it up to the bladder and pump sugar out of the blood stream into the urine. Your body could lose weight without the exercise 🎉 Probably that would mess with your body in other ways though.
Niel Liesmons's avatar
Niel Liesmons 2 years ago
Back when I was a chemistry teacher, this was one of my favorites. Also the reason why I barely drink water btw.
Me ha llamado tanto la atención lo que nos has explicado que se lo he preguntado a GPT4 y esta es su explicación: Te puedo ayudar con tu pregunta. 😊 La grasa es un tipo de nutriente que el cuerpo necesita para funcionar correctamente. Sin embargo, cuando hay un exceso de grasa, el cuerpo la almacena en las células adiposas, lo que puede provocar problemas de salud y de peso. Para perder un kilogramo de grasa, el cuerpo tiene que quemar más calorías de las que consume. Esto se puede lograr mediante una dieta equilibrada y una actividad física regular. Cuando el cuerpo necesita energía, recurre a las reservas de grasa y las descompone en ácidos grasos y glicerol, que luego se convierten en dióxido de carbono y agua¹². El dióxido de carbono se elimina por la respiración, y el agua se elimina por la orina y el sudor. Por lo tanto, la mayor parte de la grasa que perdemos se exhala como aire³. Para perder un kilogramo de grasa, hay que exhalar unos 2,8 kilogramos de dióxido de carbono y eliminar unos 1,6 litros de agua⁴. El metabolismo es el proceso que regula la velocidad a la que el cuerpo quema las calorías. El metabolismo depende de varios factores, como la edad, el sexo, el tamaño, la composición corporal y la actividad física⁵. Un metabolismo más rápido implica una mayor quema de calorías, lo que facilita la pérdida de grasa. Algunas formas de acelerar el metabolismo son: - Aumentar la masa muscular, ya que el músculo quema más calorías que la grasa, incluso en reposo. - Hacer ejercicio aeróbico, como correr, nadar o andar en bicicleta, que aumenta el consumo de oxígeno y la quema de grasa. - Hacer ejercicio anaeróbico, como levantar pesas o hacer intervalos de alta intensidad, que aumenta el gasto calórico después del ejercicio. - Comer alimentos ricos en proteínas, fibra y agua, que aumentan la sensación de saciedad y el gasto energético durante la digestión. - Evitar el ayuno prolongado y las dietas muy bajas en calorías, que pueden ralentizar el metabolismo y provocar la pérdida de masa muscular. Espero que esta información te haya sido útil. Si tienes alguna otra pregunta, no dudes en preguntarme. 😊. Origen: Conversación con Bing, 9/12/2023 (1) El metabolismo y el adelgazamiento: cómo quemar calorías. (2) Así es como nuestro cuerpo digiere y metaboliza la grasa. https://www.directoalpaladar.com.mx/salud-y-nutricion/asi-como-nuestro-cuerpo-digiere-metaboliza-grasa. (3) ¿A dónde va la grasa cuando perdemos peso? | CNN - CNN en Español. https://cnnespanol.cnn.com/2018/04/08/a-donde-va-la-grasa-cuando-perdemos-peso/. (4) ¿Qué le ocurre a mi cuerpo cuando pierdo peso? - Men's Health. (5) ¿Qué pasa con la grasa que perdemos cuando adelgazamos?. https://www.revistagq.com/cuidados/running-y-fitness/articulos/donde-va-la-grasa-que-perdemos/24696. (6) Getty Images. https://www.gettyimages.com/detail/news-photo/insulin-is-a-protein-hormone-produced-in-the-pancreas-which-news-photo/90738027.
Lucid's avatar
Lucid 2 years ago
We use up resources.
Valence's avatar
Valence 2 years ago
I'm waiting for climate fanatics to get involved. If you lose weight, release CO2 into the atmosphere, you will be shamed. Someone will glue themselves to your gym equipment. 😂
i don't know about "most" people but there are certainly such retards ...
You don't need to know a lot of chemistry to ser that the info GPT4 gave you is wrong. 1 kg of fat can't possibly become 2.8 kg of CO2 and 1.6 kg of water, for a total of 4.4 kg.
Z's avatar
Z 2 years ago
They call energy metabolism “cellular respiration”
You will blow out your excess CO2 more quickly, while hyperoxygenating. You can then hold your breath a little longer until your CO2 builds back up and eventually triggers your reflex to breathe.
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szarka 2 years ago
Did you know that the human head weighs eight pounds?
Bit of an oversimplification because you're also breathing/peeing out ketones as well as wasting heat. There are many things happening.
And the H20 generated through the respiration process of metabolism and expelled through exhalation.
Knightstr's avatar
Knightstr 2 years ago
Climate alarmist: Losing weight is killing the environment. Keep your CO2 in your body by staying fat otherwise you’re a climate denier!!
Niel Liesmons's avatar
Niel Liesmons 2 years ago
Water is the mother of all rabbit holes. TLDR: Most of the water I need is created in my body by the process Vitor described, 100% pure H2O, without fluoride, microplastics and the like. Free distillation ftw. There's only two types of water I do consume. 1. Structured water: The more structured the water (a gel-like state caused by water's unique molecular shape),the more your cells can act like little batteries, the better your blood flows and a bunch more healthy stuff. (See the work of Gerard Pollack etc) This water can be created by complicated processes or you can just eat actual cells or blood (fruit, steak, ...) 2. Salted, filtered water: Consuming water without minerals just leaches minerals. So when I'm invited somewhere I drink sparkling water and add seasalt.
Wow, pretty rabbitholistic, i need to dig more in to it. During a period of time one familiar person was drinking sea water reduced with tap water, for improve her blood circulation, i taste a couple of times but ahead of that I didn't do any more taste
IMHO metabolizing fat is THE DEFAULT state. Carbohydrate uptake in nature would be seasonal (think ripe fruits) and a great way to fatten up before winter.