Why does my pee smell like ammonia after eating fish?
Pee smelling like ammonia or fish after eating fish is usually caused by the breakdown of trimethylamine oxide (TMAO)—a compound in fish—into smelly trimethylamine (TMA), which is then excreted. This often occurs due to high protein intake, dehydration, or a rare metabolic condition known as Trimethylaminuria (TMAU), which prevents the body from breaking down this compound.
Trimethylamine is a smelly chemical your body produces when you eat certain foods like fish, beans and eggs. Normally, there's a check-and-balance relationship between trimethylamine and FMO3: when your body produces trimethylamine, FMO3 enzymes break it down.
Ingesting certain foods and supplements, like asparagus, large amounts of leafy greens, chicken, and vitamin B6, is a common cause of urine smelling like ammonia.
The number one reason for bad-smelling urine is dehydration. “You always have a certain amount of ammonia in your urine. When you have more water, the ammonia is diluted, and it smells less intense. Whereas with dehydration, the concentration of ammonia is higher, and the smell is stronger,” Dr.
[28] The treatment options for TMAU include dietary modification, antibiotic therapy, activated charcoal administration, modifications to personal hygiene, and psychological support. In some cases, low-dose antibiotics may be prescribed to reduce the population of TMA-producing bacteria in the gut.
Why the Strong Ammonia Odor in My Urine on Keto? Foul Smelling Urine on Ketogenic Diet – Dr.Berg
How can I tell if I have trimethylaminuria?
Trimethylaminuria (TMAU), sometimes known as “Fish-Odor Syndrome,” is a genetically transmitted metabolic disorder. The main symptom of TMAU is a foul-smelling body odor. The odor can smell like fish in some patients and like garbage in others. Some people with TMAU have a strong odor all the time.
The "old lady smell," or "old people smell," is scientifically known as nonenal odor, caused by a chemical compound called 2-nonenal, which forms as the skin ages, creating a distinct greasy, grassy, or musty scent due to the breakdown of fatty acids and declining antioxidants, not poor hygiene.
The socially and psychologically distressing symptoms of TMAU result from the buildup of trimethylamine (TMA), a chemical compound produced naturally from many foods rich in the dietary constituent, choline. Such foods include eggs, certain legumes, wheat germ, saltwater fish and organ meats.
An ammonia smell, often on the breath or in sweat, usually signals kidney problems, where urea isn't properly filtered and breaks down, but can also point to severe dehydration, liver issues, certain metabolic disorders, or infections, all requiring medical evaluation for proper diagnosis and treatment.
Foetor hepaticus is a feature of severe liver disease; a sweet and musty smell both on the breath and in urine. It is caused by the excretion of dimethyl disulphide and methyl mercaptan (CH3SH)2, arising from an excess of methionine.
In lupus nephritis, inflammation damages the glomeruli, allowing proteins to leak into your urine. Protein in your urine can sometimes make it look foamy or frothy, but it doesn't usually cause unusual odors.
People with trimethylaminuria develop a fishy odor after consuming seafood because they can't break down the chemical trimethylamine that's naturally found in seafood. The odor will appear within a few hours. Trimethylaminuria isn't a common disorder. It's diagnosed with a urine test.
Seafood intake was a major determinant of increased urine concentrations of total arsenic, DMA, arsenobetaine and total arsenic minus arsenobetaine in the US population.
Should I be concerned if my urine smells like ammonia?
Most of the time, an abnormal urine odor of ammonia is not alarming and typically goes away on its own, especially if the cause is your diet. However, sometimes, an ammonia urine smell persists and may indicate an underlying urinary tract infection or a sign of other health conditions such as liver or kidney disease.
Bacterial ureases (mainly Escherichia coli, Proteus mirabilis, and Enterococcus faecalis) would break down urea to foully smelling ammonia, according to that conception [138].
Ammonia has a very strong odor. If ammonia cannot be smelled, it is probably not enough to be harmful. If you can smell ammonia, then health effects are possible with eye, nose or throat irritation being the most common effects. Leave an area that smells like ammonia for fresh air.
The main symptom of Trimethylaminuria is a strong odour that may be described as smelling like rotten fish, eggs, rubbish, or urine. The smell is usually noticeable in your sweat, urine, and breath.
In primary trimethylaminuria (TMAU), an inherited deficiency in flavin-containing monooxygenase 3 leads to elevated systemic TMA levels. The excretion of elevated amounts of TMA in sweat, breath, urine and other bodily secretions gives individuals affected by TMAU a smell resembling that of rotten fish.
Here are some of the best home remedies for addressing fishy odor.
Apple Cider Vinegar. Apple cider vinegar is known for its antibacterial and antiseptic properties, which can help neutralize the bacteria causing a fishy vaginal odor. ...
“Old person smell” isn't tied to a specific age, but it can begin as early as 40. That's when the body might start producing more 2-nonenal, a compound linked to aging-related scent changes.
Remaining taste buds shrink as we get older too, resulting in diminished sense of taste. Typically, seniors notice this loss of taste with salty or sweet foods first.
The main putative human pheromones: androstenone, androstenol, androstadienone, and estratetraenol. Open in a new tab. A putative pheromone secreted particularly by women is estratetraenol (estra-1,3,5(10),16-tetraen-3-ol, Fig.
Although people can develop TMAU at any age, the symptoms usually become more obvious during puberty, which is another time of significant hormonal change.
