Food tasting salty can be caused by dry mouth, dehydration, sinus infections, or certain medicines. See a doctor if it lasts.
Causes
- Dry mouth (xerostomia) or dehydration.
- Sinus infections and postnasal drip (salty mucus).
- Medicines (blood pressure drugs, antihistamines, chemotherapy).
- Oral thrush and gum disease.
- Zinc deficiency or hormonal changes.
- Sjogren’s syndrome, a dry mouth autoimmune condition.
- Nerve damage or COVID-19 taste changes.
What helps
Drink water, brush your tongue, use sugar-free gum and a humidifier.
See a doctor if
It lasts more than a couple of weeks or comes with other symptoms.
Chemo
Cancer treatment often alters taste.
Note
The dysgeusia can resolve once the cause is treated.
Why everything may taste salty
A salty taste in the mouth that is not from food is a taste disorder (dysgeusia). Taste depends on saliva, taste buds and nerves, so changes in any of these can alter taste. Saliva itself contains sodium, and when it is thick or low in volume, the salt becomes more noticeable.
Causes
- Dehydration, which concentrates sodium in saliva.
- Dry mouth, caused by medicines (antihistamines, antidepressants, diuretics), Sjogren’s syndrome, mouth breathing, or radiation to the head and neck.
- Postnasal drip from allergies or sinus infections, where nasal mucus drains into the throat and tastes salty.
- Oral infections such as thrush, and gum disease.
- Medications, including ACE inhibitors, lithium, antibiotics and chemotherapy.
- Zinc deficiency or other nutritional issues.
- Acid reflux.
- Cerebrospinal fluid leak, rare, causing a salty drip after head injury or surgery.
- Neurological conditions such as stroke, Bell’s palsy or migraine.
- Pregnancy and hormone changes.
What helps
- Drink more water through the day.
- Brush teeth, tongue and gums, and see a dentist for oral problems.
- Treat allergies or sinus infections, and use saline rinses.
- Suck on sugar-free lemon candies or chew sugar-free gum to stimulate saliva.
- Avoid tobacco and alcohol.
- Review medicines with your doctor.
See a doctor if
The salty taste persists for more than 2 weeks, appears with a clear salty fluid draining from the nose after a head injury, or with symptoms such as weight loss, dizziness, numbness, weakness or confusion. Tests can include blood work, imaging, and a taste test.
Chemo
Cancer treatment commonly changes taste, and 50% to 70% of patients report a metallic, salty or bitter taste. Rinse with a baking soda and salt solution before meals, try cold or room temperature foods, use plastic utensils and discuss options with the care team. Taste often returns within weeks to months after treatment ends.
Note
Do not take salt tablets or change your sodium intake without medical advice if you have high blood pressure, kidney or heart disease.
Taste mechanisms
Salty taste is detected by sodium channels (ENaC) in taste cells. A persistent salty taste can come from dry mouth, postnasal drip that carries salty mucus, dehydration, medications, sinus infections, chemotherapy and radiation, Sjogren syndrome, nerve damage and burning mouth syndrome. Cystic fibrosis causes very salty sweat and skin. Taste disorders are reported by an estimated 200,000 US doctor visits yearly, per NIDCD. Drinking water, rinsing with saline and baking soda rinse, and sugar-free lozenges may relieve it. See an ear nose and throat doctor or dentist for taste changes lasting more than a few weeks, especially with weight loss, numbness or dry eyes.
Based on data from the National Institute on Deafness and Other Communication Disorders
