Jul 24, 2025

Hydration vs. Overhydration: What POTS Patients Need to Know

If you’re living with POTS (Postural Orthostatic Tachycardia Syndrome), you already know that staying hydrated is essential. But what if we told you that too much plain water could actually make you feel worse? That’s right—overhydration is a real risk, especially for people with POTS, and it’s just as important to recognize as dehydration.

Let’s break down the difference between hydration and overhydration, and explain why sodium and electrolytes—not just water—are critical to managing POTS symptoms.

💧 The Basics of Hydration with POTS

People with POTS may also deal with dehydration. Blood volume tends to be lower in people with dysautonomia, and symptoms like dizziness, fatigue, and brain fog can all get worse when you’re not properly hydrated.

This is why doctors often recommend high fluid intake and increased salt to help expand blood volume. But it’s not just about drinking gallons of water—how you hydrate matters just as much as how much.

⚠️ The Dangers of Overhydration: Hyponatremia

If you’re drinking tons of water without replacing electrolytes, especially sodium, your blood can become too diluted. This condition is known as hyponatremia—a serious imbalance where sodium levels in the blood drop too low.

Symptoms of hyponatremia can mimic or worsen POTS symptoms, including:

Headache
Nausea
Weakness
Confusion
Muscle cramps
Fatigue

In severe cases, it can lead to seizures or hospitalization. This is why balancing fluids with adequate sodium intake is so crucial for people with POTS.

🧂 Why Sodium Matters for POTS Hydration

Sodium helps your body retain water, regulate blood pressure, and improve circulation—three things that are often impaired in those with dysautonomia.

So, when you drink too much plain water, your body may not be able to hold onto it effectively. You might end up peeing it out just as fast, and your symptoms could remain the same—or worsen.

This is where Oral Rehydration Salts (ORS) come in.

✅ What Are ORS, and Why Are They Better Than Just Water?

Oral Rehydration Salts are scientifically formulated to include the optimal ratio of sodium, glucose, and other key electrolytes to support rapid fluid absorption in the body.

NormaLyte ORS follow the World Health Organization’s gold standard formula and are specifically formulated for the dietary management of certain conditions that can benefit from increased sodium intake.

Unlike most sports drinks:

NormaLyte is clinically proven to help manage symptoms of POTS
Contains no dyes and no artificial sweeteners in its PURE formula
Supports faster and longer hydration at the cellular level

🔄 How to Balance Your Hydration

Here are some lifestyle tips that people with POTS often find helpful:

Hydrate strategically—start your day with an ORS like NormaLyte to build a hydration base.
Avoid plain water in excess—alternate with electrolyte-rich drinks.
Salt smart—don’t just eat salty snacks, use products formulated for absorption.
Listen to your body—fatigue, headache, and nausea may signal that it’s time to adjust your hydration routine.