If you have POTS (postural orthostatic tachycardia syndrome), most specialists will recommend consuming 10 to 12 grams of salt per day, which translates to roughly 4,000 to 4,800 milligrams of sodium. That’s two to three times what the average person eats. The goal is to expand your blood volume so less blood pools in your legs when you stand, reducing the rapid heart rate, dizziness, and fatigue that define the condition. Getting there takes some planning, but it’s one of the most accessible and effective first-line strategies for managing symptoms.
Why Salt Helps With POTS
POTS involves a disconnect between standing upright and your body’s ability to keep enough blood circulating to your brain. When you consume more sodium, your kidneys retain more water along with it. This increases the total volume of fluid in your bloodstream, giving your cardiovascular system more to work with when gravity pulls blood downward.
In a healthy body, low blood volume triggers a hormonal chain reaction: the kidneys release renin, which leads to increased aldosterone, a hormone that tells the kidneys to hold onto sodium and water. In many people with POTS, this system doesn’t respond as strongly as it should. Dietary salt essentially does part of that job manually, helping compensate for the gap.
How Much Salt and Fluid You Need
Guidelines from major medical organizations converge on a similar range. The Heart Rhythm Society’s expert consensus recommends 10,000 to 12,000 mg of salt per day (4,000 to 4,800 mg of sodium). The Canadian Cardiovascular Society recommends 10,000 mg of salt (4,000 mg of sodium). The American Society of Hypertension suggests a slightly wider range of 6,000 to 10,000 mg of salt daily.
A practical way to think about this: one level teaspoon of table salt is about 6 grams. So you’re aiming to add roughly 1 to 2 teaspoons of salt on top of what you’d normally eat. Some clinicians recommend splitting this into three doses of 1,000 to 2,000 mg of added sodium spread across the day rather than loading it all at once.
Fluid intake matters just as much. The standard recommendation is 2 to 3 liters of water per day. Salt without enough water won’t expand your blood volume effectively, and water without enough salt will just pass through. The two work together.
High-Sodium Foods That Make It Easier
Relying on salt tablets alone gets old fast. Building sodium into meals and snacks makes the whole process more sustainable and easier on your stomach. Good options for salty snacks include pretzels, tortilla chips with salsa, pickles, olives, beef or turkey jerky, salted nuts, and cottage cheese with tomato or fruit.
You can also boost sodium by adding a quarter teaspoon of salt to foods you already eat. Sliced cucumbers, tomatoes, watermelon, scrambled eggs, air-popped popcorn, and edamame all take salt well without tasting overly seasoned. Peanut butter on apple slices with a pinch of salt is another easy option.
Condiments and seasonings add up quickly too. Soy sauce, teriyaki sauce, garlic salt, chili lime seasoning, taco seasoning, parmesan cheese, ketchup, and barbecue sauce all contribute meaningful amounts of sodium without requiring you to eat a spoonful of plain salt. Salty drinks are another underused strategy: tomato juice, tomato soup, and broth can each deliver several hundred milligrams of sodium per serving while also counting toward your fluid goal.
Salt Tablets vs. Oral Rehydration Solutions
When food alone isn’t getting you to your target, supplements fill the gap. The two main options are salt tablets (sodium chloride capsules) and oral rehydration solutions (ORS), which are drink mixes containing sodium along with other electrolytes and a small amount of glucose.
Salt tablets are convenient and let you ingest a large dose quickly. The downside is that taking concentrated sodium without enough water often causes nausea and stomach upset, and your body may not absorb it efficiently. If the sodium passes through without being absorbed, you get the gastrointestinal side effects without the blood volume benefit.
Oral rehydration solutions tend to be gentler on the stomach because the sodium is already dissolved and paired with glucose, which speeds absorption in the small intestine. The World Health Organization developed the ORS formula specifically for rapid rehydration, and some research suggests it can be as effective as IV saline for fluid restoration. ORS also provides a more complete electrolyte profile, including potassium and citrate, which plain salt tablets lack.
Many people with POTS use a combination: ORS drinks during the day for steady intake and a salt tablet when they need a quick boost before an activity they know triggers symptoms.
Spreading Sodium Throughout the Day
Dumping all your sodium into one meal is less effective than distributing it evenly. Your kidneys process sodium continuously, so a massive dose at breakfast followed by low-sodium meals means your blood volume peaks and then drops. A more stable approach is to include sodium at every meal and snack.
A practical daily pattern might look like this: a salty breakfast (eggs with salt, a glass of tomato juice), a mid-morning snack (salted nuts or pretzels), lunch with soy sauce or parmesan-heavy seasoning, an afternoon electrolyte drink, and a dinner that includes broth-based soup or liberally salted food. This keeps sodium absorption relatively constant and avoids the nausea that comes with large single doses.
Tracking your intake for the first week or two helps you calibrate. Most nutrition labels list sodium in milligrams per serving. Remember that sodium and salt are not the same number: 1 gram of salt contains about 400 mg of sodium. When your target is 10 grams of salt, you’re looking for roughly 4,000 mg of sodium across everything you eat and drink.
When High Salt Intake Needs Caution
The high-salt approach works well for the majority of POTS patients, but it’s not universally appropriate. If you have high blood pressure, kidney disease, or heart failure alongside your POTS diagnosis, the calculus changes. Some subtypes of POTS, particularly the hyperadrenergic form (which involves surges in adrenaline and elevated blood pressure when standing), may not respond well to aggressive salt loading.
Some clinicians use a 24-hour urine sodium test to determine whether you actually need more salt. If your urinary sodium excretion is already above 170 millimoles per day (roughly 3,900 mg of sodium), you may already be consuming enough, and adding more won’t provide additional benefit. This test gives a clearer picture than guessing based on diet alone.
Salt loading also won’t do much if you’re not drinking enough fluid alongside it. The two interventions are a package deal. If you’re hitting your sodium target but still symptomatic, inadequate hydration is one of the first things to check.