Basingstoke Team Parish


Salt and fluidwater and salt

A high salt diet of between 3-10g per day may be recommended. However this can be dangerous in some patients such as those with high blood pressure, kidney and heart disease. Therefore extra salt should only be taken if recommended by your doctor.

6g of salt is equialent to one teaspoon or 10 slow sodium tablets

*In addition to adding extra table salt to food, the following usually contain higher levels of salt: 
Bread products
Corned beef
Fish sauce (nam pla)
Gravy granules
Mustard, prepared yellow
Pasta sauce 
Salted nuts
Smoked meat and Fish
Soy sauce
Soup – tinned or packet 
Stock cubes
Tomato ketchup 

Some manufacturers now make lower salt versions of these products so it is always worth checking the food label for salt content.

If it is not possible to ensure adequate salt intake through diet alone, salt tablets can be prescribed.  Slow sodium tablet are available on prescription and are coated to reduce nausea. 

Increased fluid intake has been advised, particularly in the morning. Aim for a total of at least 2-3 litres of fluid per day. Drinking 2 glasses of cool fluids quickly may also help elevate blood pressure and lower heart rate.

Salt and fluid will increase circulatory volume and blood pressure. This may improve symptoms of PoTS.


Eating small amounts and often can be helpful; avoid large meals. After eating, blood is diverted to the digestive tract and away from maintaining blood pressure and heart rate which may increase symptoms.  

*It is important to eat a nutritionally balanced diet.

Caffeinated drinks, alcohol and refined carbohydrates may make symptoms worse, but everyone is different so you need to work out your own triggers.

no alcohol


  • Sit down on a perching stool while preparing food to limit prolonged standing.

  • On a good day, cook a large batch of food and freeze in portions for a bad day.

  • Use energy saving devices such as a slow cooker or electric chopper.

  • Get someone else to do the washing up!

*Currently no available medical evidenceBased on patient or expert experience and opinion. 

Written by: Lorna Nicholson
Medically approved by: Dr Kavi, Prof Newton
Review date: 1/9/15
version 4