What are the causes of bad body odor and how can it be reduced?

17 August 2026
Oils Kech
What are the causes of bad body odor and how can it be reduced?

The causes of body odor aren't limited to personal hygiene, as many believe. This is precisely what puzzles those who shower daily and use deodorants, yet the odor returns mid-day. The embarrassment you feel when you notice others distancing themselves or when you unexpectedly discover the odor yourself is real and deserves a genuine answer, not superficial advice.


Causes and treatment of body odor: Understanding the root cause


The causes and treatment of body odor begin with one scientific fact: sweat itself is odorless. The odor is produced when bacteria on the skin's surface react with sweat and break it down into foul-smelling chemical compounds. Therefore, showering alone is not enough if it's not accompanied by an understanding of what feeds and multiplies these bacteria.


The body has two types of sweat glands:


  • The Eccrine glands are distributed throughout the body and secrete a light watery sweat, while the Apocrine glands are concentrated in the armpits and intimate areas and secrete a more complex oily secretion.
  • The second type is primarily responsible for the smell because its high protein content provides ideal food for bacteria.


The causes and treatment of body odor involve a complex interplay of factors, not just a single cause. Understanding this interplay allows one to address the problem at its root, not just its symptoms.


What causes bad body odor despite showering?


The reasons for bad body odor despite daily showering are due to deeper causes than just superficial cleanliness, and this is what surprises many when they discover it.


The first of these reasons is nutrition.


  • What you eat literally shows in your body odor. Garlic, onions, curry, and spicy foods contain chemical compounds that are absorbed into the bloodstream and excreted through sweat.
  • Excessive sweating after a meal rich in garlic causes your body to release these compounds for hours, even after showering.
  • This explains why you feel perfectly clean, but the smell returns as soon as you start sweating.


The second reason is clothing, not the body.


  • Sometimes the problem is not in your body, but in your clothes, in which bacteria have accumulated even with regular washing, especially synthetic fabrics such as polyester, which trap bacteria in their threads.
  • You find yourself taking a shower and putting on a clean shirt, but the bacteria in the fabric start working as soon as you sweat.


The third reason is lack of deep cleaning


A quick shower doesn't reach all the folded areas like the armpits, behind the knees, and between the toes. These areas harbor bacteria and provide the ideal warmth and moisture for their growth. Thoroughly cleaning these areas is different from simply running water over them.


The fourth reason is an imbalance of the natural bacteria on the skin.


Excessive use of strong soaps destroys the beneficial bacteria that protect the skin and balance its environment, thus allowing other types to proliferate and produce a more intense odor.

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How can I get rid of the bad smell from my body?


When the causes of bad body odor are understood, treating them becomes systematic, not random. This is what distinguishes those who solve the problem from those who temporarily hide it.


The first step is to reconsider your bathing method.


  • Effective showering doesn't mean taking long showers, but rather focusing on the areas most prone to odor.
  • Using a light, coarse loofah on the armpits, behind the knees, and between the fingers removes dead cells that accumulate bacteria.
  • Antibacterial soap should be used in these specific areas, not on the entire body, because excessive use disrupts the skin's balance.


The second step is to treat excessive sweating at the root.


  • Excessive sweating is a separate problem that amplifies the effect of bacteria and accelerates odor.
  • Antiperspirants differ from regular deodorants because they work to reduce the secretion of sweat itself, not just to mask the odor.
  • It should be applied at night, not in the morning, because dry skin absorbs it more efficiently at night.


The third step is to modify the diet.


  • Reducing garlic, onions, and spicy foods shows results in body odor within 48 hours.
  • Drinking more water reduces the concentration of odor-causing compounds in sweat.
  • The chlorophyll found in leafy green vegetables acts as a natural internal fragrance that improves the body's odor from within.


The fourth step is natural antibacterial oils.


  • Tea tree oil, lavender oil, and coconut oil have been scientifically proven to fight odor-causing bacteria.
  • It is applied to the underarm area after showering as a natural alternative to or complement to chemical antiperspirants.


What drink improves body odor?


The causes of bad body odor are treated from the inside out, and some drinks make a noticeable difference that the person will feel within a few days.


Water is in the lead, without rival.


  • A well-hydrated body reduces the concentration of chemicals in sweat, thus lessening the severity of the odor.
  • Eight cups a day is the minimum, and in hot climates you need more.
  • A dehydrated body produces more concentrated sweat and a stronger odor.


green tea


  • It contains antioxidants that work at the level of the digestive system and reduce internal odors that are reflected in sweat.
  • Drinking two cups a day makes a noticeable difference within two weeks of continuing.


diluted lemon juice


  • It regulates the body's acidity and improves the liver's function in filtering toxins and odor-causing chemical compounds.
  • Drinking a cup every morning on an empty stomach is a habit recommended by many dermatologists to improve body odor.


Chlorophyll water


It has become one of the most prominent drinks associated with improving body odor in recent years, and there are preliminary studies supporting this use. It is added to water in small quantities and drunk daily.

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What skin disease causes a bad odor?


In some cases, the causes of bad body odor are not behavioral or dietary, but rather reflect a medical condition that requires diagnosis and specialized follow-up.


The most prominent medical conditions associated with body odor are


Trimethylaminuria, also known as fish odor syndrome


It is a rare metabolic disorder that makes the body unable to break down trimethylamine produced in the intestines, causing it to be re-excreted through sweat, urine, and breath with a fishy odor.


Severe eczema, psoriasis, and fungal skin infections


It alters the skin's environment, creating a breeding ground for various bacteria that produce distinctive odors. Anyone experiencing unpleasant odors accompanied by skin discoloration, itching, or peeling should consult a dermatologist, as the treatment in this case differs significantly from standard treatments.


Uncontrolled diabetes


It produces ketone compounds that are excreted in sweat, giving it a distinctive odor similar to acetone or rotten fruit. This type of odor indicates an emergency requiring medical intervention, not just personal care.


Chronic kidney and liver diseases


It affects the body's ability to filter waste, increasing its concentration in sweat and producing different odors. The smell of ammonia in sweat may indicate a kidney problem and warrants medical evaluation.


The practical rule here is simple: if the odor persists for more than two weeks despite attention to hygiene and nutrition, the next step is a doctor, not another product.


Frequently Asked Questions


What causes bad body odor despite showering?


Causes of body odor despite showering include a diet rich in garlic, onions, and spicy foods, which are excreted through sweat; clothing made of synthetic fabrics that trap bacteria; and insufficient deep cleaning of folded areas. In some cases, there are underlying medical conditions that require diagnosis.


What drink improves body odor?


Drinking enough water is the most important and effective way to consume it. This is followed by green tea for its antioxidants, diluted lemon juice to balance the body's pH, and chlorophyll water, which acts as a natural air freshener. Continuing this regimen for two weeks will show a noticeable difference.


How can I get rid of the bad smell from my body?


The integrated solution combines proper bathing with a focus on folded areas, using antiperspirant at night, proper nutrition with a reduction in garlic, onions and spicy foods, drinking enough water and using natural antibacterial oils such as tea tree oil and coconut oil.


What skin disease causes a bad odor?


The most common causes are trimethylaminuria (fish odor), fungal skin infections, and severe eczema. Outside the skin, uncontrolled diabetes and chronic kidney and liver diseases can produce distinctive sweat odors. If the odor persists for more than two weeks despite personal hygiene, a doctor should be consulted.


conclusion


The causes and treatment of body odor are a journey that begins with genuine understanding, not quick fixes. From changing your showering habits to reviewing your diet, to managing excessive sweating intelligently, to incorporating the right natural oils into your daily routine, every small step makes a real difference that others will notice even before you do. OilsKitch offers natural products designed to complement this journey and give you genuine confidence in your body all day long. Start a body care routine that makes a difference.