Opens in a new tab

An approach to weight loss using gut bacteria

Gut bacteria are microorganisms that have a significant impact on our health. Recent research has shown that the balance of gut bacteria is involved in regulating weight and fat accumulation.By creating a healthy intestinal environment, you can maximize the effects of weight loss. Specifically, it is recommended to actively consume foods high in dietary fiber…

Gut bacteria are microorganisms that have a significant impact on our health. Recent research has shown that the balance of gut bacteria is involved in regulating weight and fat accumulation.
By creating a healthy intestinal environment, you can maximize the effects of weight loss. Specifically, it is recommended to actively consume foods high in dietary fiber and fermented foods. Try a diet method that utilizes gut bacteria and aim to lose weight in a healthy way.

What are intestinal bacteria?

Gut bacteria refer to the microorganisms that live in our intestines. They are primarily made up of bacteria and play many roles in maintaining our health, particularly in aiding digestion and absorption and producing nutrients.
Gut bacteria are classified as good or bad. Good bacteria promote health, while bad bacteria can increase the risk of disease. Improving your intestinal environment can also help improve your immune system and maintain your health.

The role of intestinal bacteria

Gut bacteria play a variety of important roles in our bodies. First, they aid in digestion, breaking down nutrients in food and converting them into a form that is easy for the body to absorb.
Furthermore, gut bacteria contribute to regulating immune function. The beneficial bacteria present in the intestines increase the body’s resistance to external pathogens. Intestinal bacteria also produce vitamins such as B vitamins and vitamin K, which help maintain good health. Through these roles, gut bacteria are deeply involved in the health of the entire body.

About good and bad bacteria

Good and bad bacteria are the two major types of intestinal bacteria. Good bacteria are essential for maintaining intestinal balance, aiding digestion and improving immune function. They are found in large amounts in foods such as yogurt and natto, so it is a good idea to actively consume them.
On the other hand, bad bacteria produce harmful substances and have a negative impact on intestinal health. Stress and an irregular diet can cause the number of bad bacteria to increase. To improve your intestinal environment, it is important to increase the number of good bacteria and reduce the number of bad bacteria.

The effects and mechanisms of slimming bacteria

Slimming bacteria are intestinal bacteria that contribute to weight management and fat metabolism. When slimming bacteria are dominant, insulin sensitivity improves and sugar metabolism becomes smoother. As a result, it becomes easier to control your weight.

Definition and types of slimming bacteria

The main slimming bacteria are bifidobacteria and lactobacillus. These bacteria break down dietary fiber in the intestines and produce short-chain fatty acids. Short-chain fatty acids increase satiety and send signals to the brain to suppress fat accumulation.

Akkermansia muciniphila is also considered to be a slimming bacterium. This bacterium keeps the intestinal mucosa healthy and promotes metabolism, thereby suppressing fat accumulation.

Furthermore, some bacteria in the Firmicutes phylum have been suggested to support fat burning while improving the intestinal environment.

As you can see, slimming bacteria are very important for dieting and maintaining good health. By balancing the bacteria in your intestines, you can expect to lose weight more effectively.

Why slimming bacteria are effective for dieting

There are several reasons why slimming bacteria are effective for dieting.
Firstly, slimming bacteria break down dietary fiber and produce short-chain fatty acids. This makes you feel fuller and prevents overeating.
Secondly, slimming bacteria improve the intestinal environment, allowing for smoother nutrient absorption and making weight management easier.
Furthermore, improving the balance of intestinal bacteria stabilizes hormone balance and helps suppress the accumulation of body fat. These factors work synergistically to support the development of a body that is more likely to lose weight.

Tips for losing weight by adjusting your intestinal flora

Intestinal flora refers to the collection of various bacteria that live in the intestines. By improving and regulating this, you can create a body that is more likely to lose weight.

How to increase good bacteria

Diet plays an important role in increasing good bacteria. Make sure to consciously consume foods rich in dietary fiber, such as vegetables, fruits, and whole grains. These serve as food for good bacteria, making it easier for them to multiply.
Eating fermented foods such as miso is also effective. Yogurt, natto, kimchi, etc. contain probiotics (live microorganisms that have a positive effect on health when consumed in appropriate amounts), which directly supply good bacteria to the intestines.
In addition, moderate exercise also contributes to the activation of good bacteria. Incorporate walking and stretching into your daily routine to improve your intestinal environment.

Foods that promote an increase in short-chain fatty acids

Short-chain fatty acids are substances produced when intestinal bacteria break down dietary fiber, and have a variety of health benefits. In order to increase these, it’s important to consciously consume certain foods.
First, foods rich in dietary fiber such as oatmeal, soy products, sweet potatoes, and burdock root can be mentioned. Fruits such as strawberries, persimmons, and apples also promote the production of short-chain fatty acids.
Including these foods on a daily basis can improve your intestinal environment and support a healthy diet. Harness the power of short-chain fatty acids to achieve your ideal body shape.

Lifestyle habits to improve your intestinal environment

Daily habits are important for maintaining a healthy intestinal environment. First, try to eat three meals a day and follow a regular diet.

Next, don’t forget to drink plenty of water. Water helps the intestines function and helps prevent and relieve constipation.
In addition, moderate exercise is also a factor in improving your intestinal environment. Regularly engage in moderate exercise, such as walking, to promote blood circulation throughout your body. By adopting these habits, you can expect to improve your intestinal environment and make it easier for you to lose weight.

Diet and lifestyle habits that increase slimming bacteria

In order to increase slimming bacteria, it is important to review your diet and lifestyle habits.

For example, dietary fiber serves as a nutrient source for intestinal bacteria, which promotes the proliferation of slimming bacteria.
Getting enough sleep and moderate exercise can reduce stress, improve the balance of intestinal bacteria, and help you lose weight in a healthy way.

Specific meal examples

Here are some specific dietary examples for increasing your slimming bacteria.
First, for breakfast, we recommend yogurt topped with fruits such as blueberries or kiwi, and granola or prunes. This allows you to consume plenty of dietary fiber while also consuming good bacteria.
For lunch, we recommend a plate that combines a salad full of vegetables with whole-grain bread. Colorful vegetables provide a source of nutrition for your intestinal bacteria.
For dinner, a Japanese meal that incorporates fermented foods, such as a miso soup-based menu, is ideal. Include these in your diet to effectively increase your slimming bacteria.

In addition,

Mochibarley rice ball + natto soup (breakfast)

Grilled salted mackerel + simmered hijiki seaweed + brown rice (lunch)

Kimchi fried rice + soft-boiled egg (dinner)

Banana + Almond Milk Smoothie (Snack)

Sticky okra and yam rice bowl (dinner)

These are also recommended menu items.

The importance of exercise habits

Regular exercise is very important for maintaining a healthy intestinal environment. Moderate exercise promotes intestinal movement and activates intestinal bacteria, which makes it easier for slimming bacteria to increase.

For example, moderate walking promotes intestinal peristalsis and improves bowel movements. Yoga, which stimulates the intestines, also has the effect of relaxing the intestines by focusing on deep breathing and making the parasympathetic nervous system dominant.
Research has shown that light running or jogging promotes blood flow to the intestines and improves the diversity of intestinal bacteria. Strength training increases abdominal pressure and stimulates intestinal movement, and doing 10 squats a day can help those who work at a desk to overcome a lack of exercise and activate the intestines.

Exercise also helps relieve stress. Stress is one of the factors that have a negative impact on the intestinal environment, so it’s important to continue exercising to maintain physical and mental health.
By incorporating exercise into your daily life, within your limits, you can achieve healthy weight management. We encourage you to try incorporating exercise into your daily routine.

FAQ

We answer frequently asked questions. We receive many questions about the impact of gut bacteria on health and diet. In particular, many people are concerned about what foods should be consumed to improve the intestinal environment and how long it will take to see results.
An approach utilizing gut bacteria does not have an immediate effect and requires continued effort over time. It requires reviewing your diet and improving your lifestyle, so it’s important to take it one step at a time.

Are slimming bacteria really effective?

The term “slimming bacteria” is familiar to many people. However, some may wonder whether they are really effective.
Recent research has shown that certain intestinal bacteria may contribute to weight management. While this is a bit technical, these specific intestinal bacteria include the following:

Bacteroidetes – Helps break down dietary fiber and produces short-chain fatty acids. These short-chain fatty acids are thought to regulate energy metabolism and suppress fat accumulation. It has been reported that the proportion of Bacteroidetes is reduced in obese people.

Firmicutes: These bacteria are known to be highly efficient at extracting energy from carbohydrates. An increased proportion of Firmicutes has been observed in obese people.
Akkermansia: These bacteria break down the intestinal mucus layer and maintain the intestinal barrier function. It has been suggested that a high abundance of these bacteria may reduce the risk of obesity and diabetes.

Bifidobacterium: These bacteria inhibit the growth of harmful bacteria in the intestines and help regulate the intestinal environment. An abundance of these bacteria is thought to be associated with maintaining a healthy weight.
However, because each individual’s intestinal flora is different, increasing slimming bacteria may not have the same effect for everyone. A balanced diet and lifestyle improvements are important.

What are slimming bacteria and fat bacteria?

Slim bacteria and fat bacteria are distinguished by the type of bacteria present in the intestines.

Slimming bacteria help reduce weight and are characterized by their efficient use of food as energy. In contrast, fat bacteria are known to make it easier for fat to accumulate and cause weight gain.
When the balance of intestinal bacteria is right, slimming bacteria predominate, which can make dieting more effective. For this reason, it is important to lead a diet that takes into account the intestinal environment.

Summary

Maintaining a healthy balance of intestinal bacteria is an important factor in losing weight. Paying attention to your diet and increasing the number of good bacteria can help support weight management.
Specifically, consciously incorporating fermented foods and dietary fiber into your diet can improve your intestinal environment and increase the effectiveness of your diet. By practicing these things, you can achieve beauty from the inside out.


Supervisor: Dr. Hideaki Shima, Ph.D. in Agriculture (Symbiotics Co., Ltd.)

Release date: April 23, 2023
Update date: May 8, 2025

Related Articles

  • 城谷昌彦医師|IBS・潰瘍性大腸炎のQOLを変えるFMT治療の現在地

    日々の診療の中で、従来の標準治療だけでは十分に対応しきれない慢性的な消化器疾患。特に、潰瘍性大腸炎や過敏性腸症候群(IBS)を患う人々は、検査数値や画像所見だけでは見えにくい深い不安と、生活上の大きな制限を抱え続けている。 城谷バイオウェルネスクリニックの城谷昌彦医師が「腸内フローラ移植(FMT)」という新たな治療領域に関心を持った大きなきっかけ―――それは、他でもない先生自身が回腸嚢炎の治療法の一つとしてFMTを自ら受けた経験にあった。 自ら患者としてFMTを体験した医師は、臨床でNanoGAS®-FMT(水素ナノバブル水を用いた腸内フローラ移植)をどう活かし、患者の人生をどう変えているのか。そして、なぜ今、期待ばかりをあおることなく「慎重なエビデンスの検証」を訴え続けるのか。 「医療の成果は、単に症状や検査数値の改善だけではありません。患者さんが本来取り組みたかったことに再び向き合えるようになること、将来に前向きな気持ちを持てるようになることこそが、非常に大切な成果なのです。」 城谷医師の医療哲学と、2026年9月に開催される「第10回 一般財団法人腸内フローラ移植臨床 学術大会」に向けた見どころに迫る。 数値や画像には映らない「患者の不安」に向き合う 自らがFMTを受けた経験―――腸内細菌という「切り札」 「私自身、回腸嚢炎に対する治療法の一つであるFMTを大学の治験を通じて受けたことが、腸内フローラ移植に関心を持つ大きなきっかけでした」と、自らの患者体験と、消化器専門医としての深い葛藤を振り返る。 日々の診療において、従来の標準治療だけではどうしても対応しきれない患者の症状や経過に向き合うことは決して少なくない。中でも、潰瘍性大腸炎やIBS(過敏性腸症候群)の患者は、内視鏡検査や血液検査の数値だけでは測れない「いつお腹が痛くなるか分からない」「外出や外食が怖い」といった日常生活上の制限や精神的な不安を常時抱えている。 「腸内フローラを整えることは、単なる消化器症状の改善にとどまらず、患者さんのQOL(生活の質)を根本から向上させる可能性を秘めている」。自らの体験と臨床での実感から、腸内細菌へのアプローチを従来の治療を補完する「切り札」の一つとして見出すようになった。 NanoGAS®-FMTという新たな選択肢の可能性 大学の治験でFMTを受けたものの、大きな改善は見られなかったが、その可能性を感じることはできたという。数あるFMTの中でNanoGAS®-FMTを導入した理由は、「臨床現場での扱いやすさ」と「患者への負担軽減」にあったという。 従来の移植法と比較しても、患者への心身の負担に配慮しながら実施できる可能性を感じたことが大きな決定打となった。これまで既存の治療法を試しても十分な改善が得られなかった患者に対して、「腸内環境の再構築」という全く新しい選択肢を提示できるようになった意義は極めて大きい。 しかし、城谷医師は戒めを忘れない。 「一方で、FMTを『万能の治療法』のように扱うべきではないとも考えています。すべての患者さんに同じ結果が出るわけではありませんし、適応の見極め、既存治療との組み合わせ、そして治療前後の評価は極めて慎重に行う必要があります」 将来への不安を抱えた若い潰瘍性大腸炎患者の劇的な変化…

If you are concerned about your intestinal flora, start by consulting us.

Request FMT Treatment