When food has not yet begun to be digested in the body, what calories are used to digest the body s

What you used to eat is converted into sugars that are stored in your body, and these sugars are the ones that sustain your life. It is definitely impossible to provide energy after eating and digesting, and it is not available when there is no digestion. To put it in layman's terms, what you used to eat is converted into sugar, and when you save it, you use the saved part when you don't have enough sugar, until you eat it again and digest it into sugar.

This ensures a smooth energy supply to the body...

Of course, the amount of sugar stored is a certain amount, and when you don't eat for a long time, the sugar is digested and your fat is consumed. Fat cannot be directly functioned, but can only be converted into sugar and then functioned (the three major nutrients of the human body, fat, sugar and protein, can be converted into each other). That's why you get thinner if you don't eat.

Where does fat come from? One is the fat you usually eat, and the other is that you usually eat too much and can't store sugar, so you convert sugar into fat and store it, because it contains the same amount of energy, and the volume is only one-eighth of the sugar with the same energy, so the human body will convert sugar into fat...

If you run out of fat, you'll have to consume your protein. Protein is a very important thing, and a lot of metabolism cannot be carried out without protein. So when you're out of fat and start consuming protein, you're not far from death, hehe...

I typed word by word, and I was tired to death...

I'll explain it to you in the simplest and simplest words

The last time you eat, the food is digested and broken down into sugars by a variety of digestive enzymes, and when your previous energy is consumed, the sugars you get this time are broken down into ATP to provide the energy your body needs

What Lou said was the same as what he didn't say

This is a compulsory high school biology 2 course, if you are interested, you can check the relevant books

After the food enters the digestive tract, it begins to be digested and absorbed under the action of various digestive enzymes and the peristalsis of the gastrointestinal tract.

The stored fat is converted back into heat, which is also the secret of **.

Yes, fat burning is converted into energy.

Gastric digestion is not a one-time conversion of human nutrients into fat.

No, food enters the stomach, digests, and is absorbed through the small intestine. Not all organs.

Wrong. Digestive organs include the esophagus, stomach, intestines, pancreas, liver, and many more. Speaking of which, you should understand, right?

The liver secretes bile to digest fatty foods, the pancreas secretes insulin and trypsin, and digests protein foods and sugars, but food can never pass through these digestive organs, otherwise you will wait for cholecystitis or acute pancreatitis, hehe.

Starch: The saliva secreted by the salivary glands in the mouth (salivary amylase) is initially broken down into maltose, and in the small intestine, the intestinal juice secreted by the small intestine and the pancreatic juice secreted by the pancreas (a variety of enzymes) are broken down into glucose, which is absorbed by the body...

Protein: First in the stomach by the gastric juice secreted by the stomach (pepsin) into peptides, in the small intestine by the intestinal juice secreted by the small intestine and the pancreatic juice secreted by the pancreas (a variety of enzymes) to break down into amino acids, which are absorbed by the body...

Fat: Bile secreted by the liver in the small intestine is emulsified into fat particles, which are then broken down into glycerol and fatty acids by intestinal fluid secreted by the small intestine and pancreatic juice secreted by pancreas (various enzymes), which are absorbed by the body.

The nutrients that the human body needs to digest are basically these three categories...

1.Food is preliminarily broken down into maltose by salivary enzymes in the mouth and crushes the food 2And then it goes to the stomach, where it digests 1 part of the water and alcohol, and converts the maltose into glucose, but the fat is not broken down (that is, it breaks down what is eaten into puree, such as something that some people vomit when they are drunk), and it mainly purees the food for simple absorption3

Then it reaches the small intestine, where the most important digestive process is the small intestine, which is thin and long, and there are more villous protrusions, so that it can fully absorb water, fat, glucose, and various inorganic salts (vitamins), which mainly play a digestive role4And then it goes to the large intestine, which is not only a store of food scraps, but also recently discovered that the large intestine can absorb the remaining dietary fiber in food, and dietary fiber has some functions to promote digestion and some other functions (please wait for the scientists' further discovery), the substances in the feces are the residues of things and the undigested substances, and the large intestine mainly plays the role of storing feces5Finally, food scraps are excreted.

Digestive tract: Teeth: Chew and grind food so that digestive juices are mixed with practice - Stomach:

Initial digestion of food and temporary storage of food - intestine: small intestine: contains intestinal juice, pancreatic juice, bile, digested food and absorbs the main part of nutrients.

Large intestine: absorbs water and inorganic salts and excludes metabolic wastes.

Digestive glands: There are large and small digestive glands, small digestive glands include intestinal glands, stomach glands, etc., and large digestive glands include salivary glands, liver and pancreas. The liver mainly digests fatty foods.

Upstairs ** was detailed.

See the specific gastric digestion process.

Summary. Hello, It takes a lot of bodily fluids to digest food, and that's exactly what you can do in the wild, even if you have plenty of food, and you can't take in a lot of water.

When we digest food, we also need to consume something.

Hello, It takes a lot of bodily fluids to digest food, and that's exactly what you can do in the wild, even if you have plenty of food, and you can't take in a lot of water.

What is also consumed when food is dripping?

While the human body digests food to obtain energy, it also needs to rent a square foot to consume a part of the energy, which is the thermal effect of food. Therefore, in addition to looking at the calories of the food itself, we have to consume this disadvantage of eating it.

Summary. Hello isn't it.

This question should be multiple-choice. If you do what you are talking about now, then you can do it like this: No, parenteral nutrition is not obtained by digesting food through the digestive tube.

Foreign nutrition, such as the Nutrition Bible, lists air and sunlight as nutrients, and these nutrients can be obtained without going through the digestive system.

The body obtains energy by digesting and absorbing nutrients from food. Is this true?

Hello no, this question should be multiple-choice. If you do what you are talking about now, then you can do it like this: No, parenteral nutrition is not obtained by digesting food through the digestive tube.

Foreign nutrition, such as the Nutrition Bible, lists air and sunlight as nutrients, and these nutrients can be obtained without going through the digestive system.

The digestion of food begins in the oral cavity, and the digestion of food in the oral cavity is mainly mechanical (food is ground), because the food stays in the oral cavity for a short time, so the digestion in the oral cavity does not play a big role. After the food enters the stomach from the esophagus, it is subjected to the mechanical digestion of the gastric wall muscles and the chemical digestion of gastric juice, at this time, the protein in the food is initially decomposed by pepsin in the gastric juice (with the participation of gastric acid), and the gastric contents become a porridge-like chyme state, which is pushed to the duodenum through the pylorus many times in small quantities. After the chyme enters the duodenum from the stomach, it begins digestion in the small intestine.

The small intestine is the main site of digestion and absorption. Food is chemically digested in the small intestine by pancreatic juice, bile and intestinal fluid, as well as mechanical digestion by the small intestine, and various nutrients are gradually broken down into simple absorbable small molecules that are absorbed in the small intestine. As a result, after food passes through the small intestine, the digestion process is almost complete, leaving only the indigestible food residues, which enter the large intestine from the small intestine.

There is no digestion in the large intestine, and it only has a certain absorption function, absorbing a small amount of water, inorganic salts and some vitamins. That is to say, the mouth and stomach are digested first, the small intestine absorbs, and the large intestine also absorbs some. Therefore, it should not be correct to say that digestion and absorption should be carried out at the same time

Thank you for your help.

You're welcome dear.