Salt isn't the enemy; processed food is

Salt: From public demon to forgotten nutrient

Should you throw away the salt shaker? Short answer: no, and perhaps you never should have. The demonization of salt is one of the most profitable nutritional dogmas of the last half-century, with growing evidence that drastic sodium reduction can be as dangerous as excess. As shown by one of nephrology's most cited J-curves, the optimal point lies between 7 and 14 grams per day, well above the WHO's famous 5 grams.

The history of salt antiestéticar began with old studies poorly extrapolated: in some hypertensive patients, reducing sodium slightly lowered blood pressure. This led to universal recommendations. Cardiologist James DiNicolantonio summarizes this in "The Salt Fix": salt was unfairly blamed for decades, and biology rarely works with such simplistic solutions. Excess isn't harmless, but the real enemy is elsewhere: ultra-processed foods, sugar, and salt quality.

What salt does in your body: it's more than flavor

Salt isn't a dispensable condiment: it's an essential electrolyte. Without sodium, cells cannot perform osmosis or absorb nutrients even if the organism is full of them. Potassium, its companion, is equally critical. That's why in hospitals, when a patient can't eat, the IV fluid contains salt and water: it's not a whim, it's physiological necessity. Prolonged fasting, ketogenic diets, or simply not eating for days without salt intake are the perfect recipe for headaches, dizziness, and brain fog.

Curiosity: Elephants dig up soil looking for salt chunks. Deer seek it too. The entire animal kingdom understands something the "health" industry has managed to make us forget: sodium is life.

The salt dilemma: sea, fossil, or refined

Not all salts are equal. Refined table salt is basically sodium chloride with anti-caking agents, stripped of minerals found in unprocessed salt. Unrefined sea salt and fossil salt (from underground springs, like those from Villena or Torrevieja) retain that complete spectrum of trace elements. The difference matters, especially if your salt consumption is high. Note: Most salt consumed by the average person doesn't come from the shaker, but from pre-salted foods: cured meats, processed items, sauces, almost always accompanied by sugar.

Blood pressure, kidneys, and the J-curve

The relationship between salt and hypertension is real, but not linear. The NEJM J-curve makes this clear: both excess and extreme restriction increase cardiovascular risk. The sweet spot, that range of 7 to 14 grams, coincides with natural consumption when you cook with salt and don't obsess over it. Conversely, drastically reducing salt can spike cardiovascular mortality. Kidney issues are another front: sustained sodium excess damages renal function, and although there is some recovery capacity - literature published around 2020 addresses this - the best policy remains moderation. Not regarding salt alone, but the salt-and-sugar combo of industrial food.

Sugar, the shadow hiding behind salt

Here is the key ignored by official narratives. Hypertension isn't a salt-shaker disease: it's practically always a symptom of metabolic syndrome. And the metabolic culprit is sugar, not sodium. Sugar contains 50% fructose, and fructose dysregulates the mechanism controlling sodium. In contrast, salt doesn't cause addiction: the body asks for salt when needed, and the desire fades once satisfied. With sugar, there's no limit: it always asks for more, like a drug. Anyone who tried eating "just a little" knows this.

Verdict: What do we do with the salt shaker?

The question isn't "salt yes or no," but which salt you take and what you pair it with. Reduce ultra-processed food consumption (where salt and sugar hide), use unrefined salt, and don't antiestéticar salting homemade meals. Scientific evidence, physiology, and common sense - that held by the rest of the animal kingdom - agree: salt is not the enemy. The enemy, as almost always, is ultra-processed food. For once, the salt shaker is acquitted.