Last updated on Jun 23rd, 2021 at 11:50 am

Everyone has a natural smell, when that natural smell is something as offensive as fish this can be embarrassing and uncomfortable

While most people associate a fishy smell with bad feminine hygiene, fish odour syndrome can affect men too.

Having a fishy smell when you haven’t had fish or handled fish is a medical condition that can be genetic. 

What is ‘fish odour syndrome’?

The medical name for fish odour syndrome is trimethylaminuria. According to, trimethylaminuria has nothing to do with hygiene and everything to do with your bodies inability to process trimethylamine.

When trimethylamine isn’t processed properly is it excreted from the body through your sweat and your urine. This could smell strongly of fish or even rotting fish which can be uncomfortable, embarrassing and cause social anxiety. 

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How to avoid the fishy smell

Trimethylamine comes mainly from the food we eat and has benefits when it comes to reducing hypertension. Although foods rich in trimethylamine can be part of a healthy diet, it is possible to cut out foods with trimethylamine and still maintain a healthy diet. 

Foods to avoid:







-soy products

-veggies from the cabbage family

How to get rid of the smell now

While it is not possible to suddenly stop your body from excreting trimethylamine, it is possible to scrub off the bad-smelling sweat with soaps that are rich in lactic acid and using lotions that are also rich in lactic acid. 

These are great for your skin as well and keep it supple soft and well moisturised. 

The best way to control, reduce and possibly eliminate the fishy smell is through a restrictive diet as there is no cure for trimethylaminuria.




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