Magnesium, Potassium, Sodium... Oh My.
Electrolytes are essential for human life, not because they’re trending, but because your body runs on them at a cellular level. Every nerve fired, muscle contracted, or heartbeat regulated depends on electrolyte balance.
But while most people recognize the term, few know what these minerals actually do.
This article breaks down the three core electrolytes, sodium, potassium, and magnesium, and explains how each contributes to hydration, performance, and everyday physiological function.
Let’s start with sodium.
Sodium: The Unsung Hero of Hydration
What it does:
- Regulates fluid balance (think: keeps water in your cells)
- Supports nerve signaling and muscle contractions
- Helps maintain blood pressure and volume
Why you need it:
Sodium gets a bad rap, but it’s not the villain. It’s the gatekeeper of hydration. Without enough sodium, your body can’t retain fluids, no matter how much water you drink.
Low sodium = symptoms like:
- Headaches
- Fatigue
- Muscle cramps
- Dizziness
- That sluggish, “off” feeling
Who needs more:
- People on low-carb diets
- Athletes or anyone who sweats a lot
- Anyone who drinks a lot of plain water without added minerals
- People who salt their food less than a goat licks a rock
Potassium: The Cellular Equalizer
What it does:
- Works with sodium to balance fluids inside and outside cells
- Helps control muscle and heart contractions
- Supports nerve function and blood pressure regulation
Why you need it:
Potassium and sodium are like two sides of a teeter-totter. If sodium pulls water into your bloodstream, potassium pulls it into your cells. You need both to feel and function your best.
Low potassium = symptoms like:
- Muscle weakness or twitching
- Heart palpitations
- Brain fog
- Fatigue
Who needs more:
- People who eat lots of processed foods (they're low in potassium)
- Heavy sweaters and athletes
- Anyone not regularly eating fruits, veggies, or — hey — a smart daily supplement
Magnesium: The Chill Mineral
What it does:
- Involved in 300+ enzymatic reactions
- Regulates muscle function, nerve signals, and energy production
- Supports sleep, stress response, and electrolyte balance
Why you need it:
Magnesium is your body’s behind-the-scenes operator. Without it, everything from energy levels to stress tolerance to sleep takes a hit.
Low magnesium = symptoms like:
- Muscle cramps or twitching
- Poor sleep
- Stress and irritability
- Low energy and chronic fatigue
- Hormonal imbalances
Who needs more:
- Pretty much everyone. (Most people are mildly deficient.)
- People under stress (it depletes magnesium fast)
- Coffee drinkers, alcohol drinkers, and the chronically wired
Why We Included All Three in Mainline
Because your body isn’t compartmentalized, everything’s connected.
Hydration, energy, recovery, focus, these electrolytes fuel all of it. And they work better together:
- Sodium helps your body retain fluid
- Potassium moves that fluid into your cells
- Magnesium makes sure everything runs smoothly and you stay calm under pressure
That’s why we included optimized doses of all three in every scoop of Mainline, to replace the guesswork and give your body what it’s actually asking for.