Patients with POTS are encouraged to increase their dietary sodium and water intake in an attempt to augment blood volume (as hypovolemia has been identified in many patients with POTS).
Because eating large meals diverts blood flow to digestive organs, patients with POTS may feel worse following large meals. These patients may benefit from eating several small meals instead of a few larger meals.
Some patients have found that certain types foods trigger their symptoms. These include: alcohol, caffeinated beverages, and carbohydrates.