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Does skipping meals cause 'bad breath'!? The 'diet odor' that busy women in their 30s fall into, and the signs of 'hidden diseases' that bad breath reveals

Table of Contents

  1. Lunch consisting only of salad or jelly drinks... Suddenly noticing a 'sticky mouth' and discomfort

  2. The trap of cutting carbohydrates! The true nature of 'ketone odor (diet odor)' that occurs when fat burns

  3. Saliva dries up from not chewing! Why odor-causing bacteria explode in number

  4. [Caution] What does it smell like? Signs of 'hidden diseases' that bad breath tells you about

  5. The most important thing in nutritional support! 'Saliva' is the ultimate natural etiquette and digestive aid

  6. Quickly solved at a convenience store! 3 moisturizing and chewing snack foods to prevent 'diet odor'

  7. Summary: Chew well, eat deliciously, and achieve a summer body with fresh breath

  8. Reference information and source links

1. Lunch consisting only of salad or jelly drinks... Suddenly noticing a 'sticky mouth' and discomfort

Thank you for all your hard work with your daily job and housework.

July is here, and summer is in full swing. With more opportunities to wear light clothing, many people are likely working hard on their diets, thinking, 'I want to slim down my waistline even a little!'

I often hear from busy women in their 30s, 'My lunch is just a quick jelly drink' or 'To keep calories down, I just have soft glass noodle soup or a tofu salad.'

However, while continuing such dietary restrictions, have you ever been startled when talking to someone or the moment you take off your mask, thinking, 'Huh? My mouth feels sticky...' or 'I feel like my breath smells a bit sharp, sweet, and sour, like old oil...'?

'I brush my teeth properly every day and chew breath mints, so why?'

Actually, the source of that discomfort drifting from your mouth or body is not a lack of oral care. It is highly likely to be a specific type of bad breath or body odor (commonly known as 'diet odor') caused by 'not eating' itself.

This time, for busy women who don't have time to exercise, I will talk about the mechanism of odors generated from inside the body, the signs of illness hidden in bad breath, and the 'moisturizing weight loss' rule that makes your breath clean just by eating.

2. The trap of cutting carbohydrates! The true nature of 'ketone odor (diet odor)' that occurs when fat burns

You might tend to think, 'Wouldn't my stomach be empty and the odor decrease if I don't eat?', but the mechanism inside the body is not that simple.

If you drastically reduce carbohydrates (rice, bread, etc.) for a diet or skip meals entirely, your body falls into an energy-deficient (starvation) state. Then, the body tries to create energy by burning stored 'fat'.

You might think, 'I'd be happy if my fat burned off!', but the substance that is generated during this emergency fat-burning process is called a 'ketone body'.

These ketone bodies contain a component called 'acetone,' which enters the bloodstream and is exhaled through the lungs or released through pores with sweat, giving off a unique odor.

It is often described as a 'sweet and sour smell (the smell of overripe fruit)'ora 'sharp, nail polish remover-like smell.' This is the true nature of 'diet odor (ketone odor).'

No matter how expensive the perfume or mouthwash you use, it is not a fundamental solution because the odor is coming from your blood and lungs.

3. Dry mouth from not chewing! Why bad breath bacteria explode in number

There is another major factor that further worsens diet odor. That is the dryness of the mouth caused by a 'drastic reduction in chewing'.

Jelly drinks, smoothies, vermicelli soup, soft salads... These are low in calories, but they require almost no 'chewing'.

When we chew our food thoroughly, plenty of 'saliva' gushes out from the secretory glands under our ears and jaw. In fact, this saliva is the 'ultimate natural cleaning fluid' that washes away food debris and odor-causing bacteria in the mouth.

[The close relationship between the power of saliva and bad breath]

When saliva secretion decreases and your mouth becomes dry (a state of dry mouth), 'anaerobic bacteria (bad bacteria that cause odors)' that dislike oxygen multiply explosively. These bacteria break down the proteins in the oral mucosa, generating an intense smell like rotten eggs (volatile sulfur compounds).

If you only eat soft foods to 'reduce calories,' you won't produce saliva, and you will fall into a terrifying vicious cycle where you end up creating intense bad breath yourself.

4. [Caution] What kind of smell is it? Signs of 'hidden diseases' that bad breath tells you about

In fact, bad breath is often not just a lack of care, but an 'SOS signal from inside the body.' Medical professionals like us pharmacists sometimes notice hidden diseases from the smell of a patient's breath.

If a strong odor persists even after reviewing your diet and oral care, please suspect the signs of the following diseases.

  • Sweet and sour smell (acetone odor):

    1. If you have this smell even though you are not on an extreme diet, there is a possibility of 'diabetes.' It is a sign of a dangerous state (diabetic ketoacidosis) where insulin is insufficient, sugar cannot be used properly, and the body is forcibly burning fat.

  • Smell like rotten eggs (hydrogen sulfide):

    1. 'Periodontal disease (pyorrhea)' accounts for about 90% of pathological bad breath. The risk increases rapidly from the 30s, and if left untreated, it can lead not only to tooth loss but also to systemic diseases. It can also be caused by 'tonsilloliths (tonsil stones)' that form in the tonsils of the throat when immunity drops due to fatigue.

  • Ammonia-like smell (sharp urine smell):

    1. 'Decreased kidney function,' the body's detoxification factory, or 'fatigue odor' due to extreme exhaustion is suspected. This is a state where ammonia in the blood is not excreted as urine but is coming out as breath and sweat.

  • Smell like a sewer, old rag, or mouse:

    1. 'Decreased liver function,' which breaks down toxins, is suspected. Odor substances (such as dimethyl sulfide) that could not be processed by the liver are excreted from the lungs. Even in women who do not drink alcohol, it can occur due to 'fatty liver' caused by excessive intake of sweets.

5. Most important even in on-site nutritional support! 'Saliva' is the ultimate natural etiquette and digestive aid

If it is not caused by illness, but by diet or fatigue, you can improve bad breath with your own efforts.

I am also involved in work at a hospital where a team supports the nutritional status of patients (NST: Nutrition Support Team). There, 'chewing food thoroughly with your mouth' is considered one of the most important points in a patient's recovery.

I have seen many times in the field that patients who stop 'using their mouth to chew' due to IV drips or liquid diets quickly experience a decrease in saliva and a deterioration of their oral environment.

Saliva not only has a 'self-cleansing action' that washes out the inside of the mouth, but it also has the following wonderful functions.

  • Antibacterial action: Components in saliva such as lysozyme fight off odor-causing bacteria and cold viruses.

  • Digestive aid action: Enzymes (amylase) in saliva break down carbohydrates, dramatically reducing the burden on the gastrointestinal tract. It can also prevent 'odors from the stomach' caused by gastrointestinal fatigue.

In other words, 'chewing thoroughly to produce saliva' is the strongest oral care you can do for free, and the best diet support to take care of your gastrointestinal tract as well.

6. A quick fix at the convenience store! 3 selected moisturizing & chewing snack foods to prevent 'diet odor'

'I understand the logic, but I don't have time to cook at home every day and make crunchy vegetables!'

Please rest assured. Even busy women in their 30s can prevent ketone odor and keep their mouths moist by producing plenty of saliva just by being a little creative with the items they choose at convenience stores and supermarkets.

1. 'Small brown rice rice ball' or 'mochi-mugi (barley) rice ball'

To stop ketone odor (a sweet and sour smell), 'moderate carbohydrates' are absolutely necessary to end the starvation state. Instead of cutting carbohydrates to zero, eat one rice ball made of brown rice or mochi-mugi, which is rich in dietary fiber and has a chewy texture, for lunch. This alone will get your metabolism running normally and stop that sharp odor instantly.

2. 'Unsalted mixed nuts' or 'dried squid (atarime)'

These are perfect for afternoon snacks or when you feel like chewing on something. Especially nuts like almonds and walnuts, or 'dried squid' found in the snack section, naturally increase the 'number of times you chew.' Chewing not only stimulates the satiety center in the brain to prevent binge eating, but also moves the jaw muscles to stimulate the salivary glands, keeping your mouth moist with natural cleansing fluid.

3. Cut fruits such as 'apples'

The 'cut apples' in the refrigerated section of convenience stores are also excellent etiquette foods. 'Malic acid' contained in apples has the effect of neutralizing odor substances in the mouth and refreshing it. The crunchy texture makes it easier to produce saliva, and it is much more effective for dieting and bad breath care than eating sweets.

7. Summary: Chew well, eat deliciously, and aim for a summer body with fresh breath

How was it?

  • Starvation diets (extreme carbohydrate restriction) generate a sharp 'ketone odor'

  • When 'saliva' decreases due to soft food, odor-causing bacteria increase explosively in the mouth

  • Bad breath is also a sign of diseases such as 'periodontal disease,' 'diabetes,' and 'decline in liver/kidney function'

  • Saliva is the ultimate natural etiquette fluid and also a digestive aid that helps the stomach and intestines

  • Prevent ketone odor with moderate carbohydrates (such as brown rice) and increase your 'chewing frequency' with nuts and apples

You work to your limit every day, doing your best for others. You don't need to punish yourself by drastically reducing your meals for the sake of beauty.

Our bodies are designed to cut off the source of odors and maintain a beautiful, healthy state simply by 'taking in the necessary nutrients in moderation and chewing them thoroughly to savor them.'

For today's lunch, try skipping the jelly drink and adding one 'mochi-mugi (barley) rice ball' that you can chew well. The saliva that overflows every time you chew will hydrate your body and bring you light-hearted days with clean breath!

8. Reference Information and Source Links

This article is based on scientific evidence provided by the Ministry of Health, Labour and Welfare and others, as well as the latest medical and dental evidence. For more detailed information, please refer to the following official pages and papers (all available for direct viewing).



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