Education, Electrolytes

Understanding sodium, potassium
and magnesium.

By Fluyd — 4 min read

Most people know they should be drinking more. Fewer people know that water alone isn't enough. Here's a proper look at the three minerals that make Fluyd work, what they do, why you need them, and what happens when you don't get enough.

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Sodium, the one everyone gets wrong.

Sodium has a bad reputation. Years of public health messaging around blood pressure has made people think sodium is something to avoid. But there's a big difference between excess dietary sodium from processed food and the sodium your body actively needs to function.

Sodium is the primary electrolyte in your blood and the fluid surrounding your cells. It regulates fluid balance, supports nerve function, and drives the thirst response that tells you to drink in the first place. Without adequate sodium, water doesn't absorb as effectively, you can drink plenty and still feel dehydrated.

When you sweat, sodium is the electrolyte you lose most of. Research shows sweat losses can range from 500mg to over 1,000mg per hour depending on intensity and conditions. Even on a low-activity day, your body loses sodium through sweat, urine, and basic metabolic processes.

Fluyd contains 500mg of sodium per serve, sourced from Himalayan pink salt. That's a meaningful dose, enough to genuinely support hydration without pushing into excess.

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Potassium, the mineral most people are short on.

Potassium works hand in hand with sodium through what's called the sodium-potassium pump, a mechanism in every cell of your body that regulates what goes in and what comes out. It's one of the most fundamental processes in human physiology.

The recommended daily intake for potassium is around 3,500mg. Most adults fall well short of that. Unlike sodium, potassium doesn't come from processed food, it comes from whole foods like bananas, leafy greens, and avocados. If your diet isn't consistently hitting those, you're likely running low.

Low potassium is linked to muscle cramps, fatigue, and poor recovery. It also affects heart function and blood pressure regulation.

Fluyd contains 200mg of potassium per serve from potassium chloride. Combined with the sodium, it supports the balance your cells need to function properly, whether you're at your desk or mid-training.

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Magnesium, the one nobody talks about enough.

Magnesium is involved in over 300 enzymatic reactions in the body. Energy production, muscle contraction, nerve function, protein synthesis, sleep regulation, magnesium has a role in all of it. It's arguably the most underrated mineral in the human diet.

Studies estimate that a significant portion of the population is magnesium deficient, often without knowing it. The symptoms are easy to dismiss, fatigue, trouble sleeping, muscle tension, low mood. Things most people chalk up to being busy or stressed rather than a nutritional gap.

Research has shown that even modest magnesium supplementation can improve sleep quality, reduce muscle soreness, and support energy levels over time.

Fluyd uses magnesium citrate specifically, a form of magnesium that research shows is better absorbed by the body than cheaper alternatives like magnesium oxide.

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Why zero sugar actually matters.

Most electrolyte products use sugar to make the formula taste good. It works, but it comes at a cost. Sugar causes a rapid spike in blood glucose followed by a crash. For something you're drinking every morning or post-training, that's the last thing you want.

Fluyd is sweetened with organic stevia, a plant-derived sweetener with no impact on blood sugar. The taste is clean, the energy is steady, and there's no crash.

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The bottom line.

Sodium, potassium, and magnesium aren't exotic supplements. They're minerals your body needs every day, loses every day, and rarely gets enough of from diet alone. Fluyd puts them back in the right amounts, with nothing you don't need.

That's the whole idea.