If you’ve been drinking water all day but still feel dehydrated, here’s an explanation you’ve probably never heard before

You drink 2 to 3 liters of water a day, but your mouth still feels dry, you get muscle spasms, your sleep gets worse, and you experience brain fog and blurry vision. So you are asked to drink more water – carry a bottle everywhere, and sip from it constantly. But instead of getting better, you end up going to the bathroom every 40 minutes with increasingly clear urine. This is a sign of dehydration, not hydration. This is a “dead water” trap, and here’s how salt and lemon can fix it. (Based on the vision of Dr. Javier Forman)

Why plain water alone is not enough

We’re told to drink plenty of water, but we’re rarely told that not all water hydrates the same way. What is often called “dead water” – i.e. simple H2O that has been stripped of minerals – does not do what water has historically done for us. Traditionally, water has been a source of minerals and trace elements, not just fluids. Today, most available water — whether tap or bottled in plastic — is treated in ways that remove those minerals.

Tap water often carries chlorine and other chemicals added to make it drinkable, and in some cities travels through old pipes that can cause pollution. Well water carries its own risks, often absorbing decades of agricultural chemicals, pesticides and fertilizers from surrounding lands, as well as antibiotics that make their way into groundwater from livestock. There is no perfect option, the real task is to understand which water is less problematic and actively work to improve it, rather than assuming that water straight from the tap or bottle is automatically fine.

BUILD A BETTER BASE: Filtered water plus minerals

Start by using filtered water as your base – ideally from a reverse osmosis filter – but realize that filtration alone is often not enough, as it removes minerals and contaminants. When choosing bottled water, learn to read the label for “dry residue,” i.e. the mineral content remaining if the water evaporates. Ideally, this number should be higher than 300. Water that does not meet this – or water directly from an over-filtered source – is essentially “dead” water: not only is it failing to nourish you, but it is actively working against you.

Here’s the mechanism: When mineral-deficient water enters your body and comes into contact with your tissues, it pulls minerals from your cells through osmosis — a natural chemical pull toward homeostasis. If there is “dead” water outside the cell, what’s inside the cell has to come out to compensate, dehydrating the cell itself. This is what actually happens every time you find yourself constantly running to the bathroom, as your body works hard, at real metabolic cost, to get rid of the imbalance caused by mineral-poor water.

Do not obsess over clear urine

Common wisdom is that pale, clear urine is a sign of good hydration. This approach pushes back on that. Urine is naturally darker in the morning and lighter later in the day, and diet, water intake and supplements affect its color. According to this view, a well-hydrated person doesn’t need obsessively clear urine—dark morning urine can actually indicate that your body did a good job overnight at filtering out toxins, pathogens, and cellular waste, and that you got true restorative sleep that repaired your brain, tissues, organs, liver, and immune system.

Get rid of the fear of sodium

We’ve been told, especially if we have a history of high blood pressure or take blood pressure medications, to avoid sodium. This approach argues that this is the wrong target: the real cause is sugar. Sugar is what destroys the glycocalyx, the inner protective lining of the arteries. Once that lining is damaged, the sodium that arterial tissue safely stores (and relies on as an important resource) is released inappropriately, contributing to high blood pressure rather than causing it. From this point of view, sodium is not the enemy; In fact, it is one of the most important tools your body needs from water.

Salt water method in the morning

First thing in the morning is the most important hydration period of the day – physiologically, your body is designed to wake up between 6:00 and 7:30 or 8:00 AM. This is the right moment to check the toilet (dark urine indicates a good night for repairs) and then start your day with salt water, and finally salt water with lemon.

Method: Take about 1 liter of well-filtered water (ideally reverse osmosis, completely free of chemicals, heavy metals, microplastics and toxins) and add a teaspoon of salt. Start with just half a teaspoon and gradually increase – don’t jump straight to doses you might see quoted on social media or generated by artificial intelligence, since everyone is different (a principle sometimes called “n = 1”). Starting with too much too quickly can cause digestive upset or diarrhea.

Choose your salt

Celtic Sea Salt (Gold Standard): It is extracted using the same artisanal techniques used 2,000 years ago, from the salt flats of France, using wooden rather than metal tools to avoid oxidation of the metal. Genuine Celtic salt should be moist, as the moisture comes from magnesium chloride, which is present at approximately 10-15%, an important mineral in itself.

Seawater/Marine Plasma (Quinton Plasma): It is named after Dr. Rene Quinton, who pioneered its use. This needs to be properly improved, because untreated seawater carries the risk of contamination. Start very conservatively — about 10% seawater diluted in a liter of filtered water — and then gradually increase the amount. Protocols sometimes suggest a quarter-strength dilution, but this is considered too aggressive for most people starting treatment and usually results in diarrhea, especially in women, who are more prone to constipation and may assume a stronger dose will help – but it won’t; It will just cause digestive distress instead.

Unrefined sea salt: The same remains of evaporated seawater provide similar trace elements. Look for high-quality sources, as low-quality or heavily processed versions may introduce unwanted chemicals along with the minerals.

Himalayan salt: The most affordable and accessible option. Look for large, darker, more opaque pink granules. This color comes from iron oxide, which is also beneficial for the body. Finely ground, pale or very white Himalayan salt indicates more processing and lower mineral content.

Understanding osmotic diarrhea

Adding too much salt or seawater too quickly creates an osmotic gradient that pulls water from the bloodstream into the intestines, resulting in forceful, urgent peristalsis to relieve internal pressure—in other words, diarrhea. This is your body’s alarm system that responds to too much, too quickly. The solution is simple: go slow, increase day by day, and find your limit – a limit you’ll recognize not because you feel bad, but because you’ll notice when you start feeling really good: clear-headed, active all day, no muscle cramps, no headaches, no joint pain, and better sleep.

Add lemon

Once you’ve established your basic saltwater routine, add a little fresh lemon juice — not artificially flavored bottled lemon water. This isn’t primarily about taste, although it may make saltwater more palatable. The citric acid in fresh lemon juice helps create a better gradient for drawing minerals – more than 80 trace elements and minerals – into your cells. Citric acid essentially opens the door for vitamin C to enter the cell, and once inside, it acts as a powerful antioxidant, hydrating and detoxifying at the cellular level.

Isotonic versus hypertonic: adjusting intensity

A standard teaspoon of salt per liter creates an isotonic solution – identical to the concentration of minerals in the blood plasma, meaning it enters the body without creating an internal gradient that the body must work to correct. This is your daily maintenance formula.

On days that require heavy physical effort — an intense workout, a demanding game, a long run — or even a particularly stressful day at work, a hypertonic formula (a pinch of salt, adjusted with a little lemon to make up for the taste) can help make up for what you’ve lost. If this stronger mixture causes any digestive discomfort, dilute it. For an instant and concentrated boost, place a pinch of Celtic salt under the tongue, allow to dissolve, then swallow with a little water or lemon water – a quick way to replenish minerals and energy after a hard day, before your metabolism starts to break down.

Frequently asked questions

source: Dr. Javier Forman

Disclaimer: This article is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you have high blood pressure, kidney disease, heart failure, or take related medications, consult your doctor before changing your salt or sodium intake.