Magnesium and potassium: two key minerals for energy, sleep, and metabolic balance
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Introduction
Often, the greatest truths are simple. In Frank Suárez's teachings, metabolism was not understood as something mysterious or impossible to improve, but rather as a living system that functions best when the body receives what it needs to produce energy, balance, itself, and rest.
Within this vision, magnesium and potassium hold a very special place. They are not presented as a fad or something complicated, but as two basic minerals that participate directly in energy production, nervous system function, sleep, cramps, blood pressure, muscles, and many other bodily functions.
The main lesson is clear: when the body is deficient in essential minerals, metabolism loses efficiency, the nervous system becomes unbalanced, and signals begin to appear that many people treat as isolated problems.
But from Frank's teaching, the important thing is to understand the cause, look at what is happening inside the cell, and give the body the conditions it needs to function better again.
Key points
- Frank Suárez taught that metabolism occurs within cells, where the body's energy is produced.
- Potassium is found mainly inside the cell, while sodium predominates outside it.
- The sodium-potassium pump maintains that balance and needs magnesium to activate.
- ATP, which Frank described as the body's energy, depends on magnesium.
- Magnesium helps reduce the activity of the excited nervous system.
- Potassium helps activate the passive, relaxing, and restorative side of the nervous system.
- Frank called magnesium and potassium a complementary combination to support energy, sleep, blood pressure, muscles, cramps, and metabolism.
Metabolism occurs within cells
Frank Suárez taught that to understand metabolism, one must look at where it actually occurs: inside the cell. The entire body is made up of cells, and that is where energy is created.
Therefore, when talking about fatigue, insomnia, lack of desire to exercise, or metabolism problems, the explanation does not start outside, but inside.
Inside the cell there is a large amount of potassium. According to this explanation, 98% of the body's potassium is inside the cells, while the other 2% is outside.
In contrast, sodium, that is, salt, predominates outside the cell.
This difference is important because sodium and potassium have opposite actions. Sodium retains fluid. Therefore, when a person consumes too much salt, they may retain more fluid, which can be related to blood pressure.
Potassium, on the other hand, acts as a natural diuretic, helping the body eliminate excess water.
That is why Frank observed that some people with fluid accumulation in their ankles, fingers, or hands could notice changes when they started receiving potassium. The idea was not to view the accumulated fluid as an isolated problem, but as a sign that something in the body's balance might be failing.
The sodium and potassium pump: a key to producing energy
In the wall of each cell there is a mechanism known as the sodium and potassium pump. Frank explained it as a kind of biological machine that maintains the correct balance: it removes sodium from the cell and allows potassium to enter.
But this pump needs magnesium to activate.
Magnesium is like the key that turns on that mechanism. Without magnesium, the pump cannot function correctly.
Here we can see the relationship between these minerals. Potassium must be inside the cell, sodium must remain outside, and magnesium allows that exchange to occur. Among these elements, the body maintains part of its ability to create energy.
That energy is produced in the mitochondria, where ATP is formed, which Frank described as the body's energy.
When a person has enough ATP, they do not tire as easily, may have more desire to move, sleep better, and function with more vitality.
When there is little ATP, fatigue appears, the body feels heavy, there is a lack of desire to exercise, and other difficulties may arise.
This explanation connects directly with one of Frank's central ideas: when energy fails, the body fails. And for there to be energy, the body needs the correct elements.
Magnesium and ATP: a direct relationship with energy
Frank emphasized that ATP is so related to magnesium that in the literature it can be found as magnesium-ATP.
His point was simple: the cell cannot produce its energy well if it lacks magnesium.
This helps to understand why a magnesium deficiency can be related to so many different manifestations. It is not just about a mineral for a specific function.
Magnesium participates in energy production, body relaxation, and nervous system balance.
Frank mentioned that a large part of the population may be deficient in magnesium, especially in Western countries where more junk food and fewer mineral-rich foods are consumed.
In his teaching, this data served to draw attention to something basic: the body cannot function well if it does not receive the minerals it needs.
The excited nervous system and the passive nervous system
One of Frank Suárez's most characteristic teachings is the functional division of the nervous system into two sides: the excited nervous system and the passive nervous system.
The excited nervous system is related to fighting, running, reacting, being alert, and facing emergencies. It is necessary, but it should not dominate all the time.
The passive nervous system is related to relaxing, releasing stress, sleeping, activating body recovery, supporting the immune system, and allowing resting functions.
The problem appears when a person lives with too much stress and keeps the excited side too active. Then multiple signs of imbalance can appear: tension, anxiety, difficulty sleeping, back pain, high blood pressure, and a feeling that the body cannot turn off.
In this explanation, magnesium and potassium act in different ways, but with a similar result: they help calm the body.
Magnesium: reduces excitation
Magnesium reduces the activity of the excited nervous system. That is, it helps reduce that excitation, anxiety, or tension.
From this teaching, when the body is overactivated, magnesium helps reduce that excess.
Potassium: activates relaxation
Potassium works from the other side: it increases the relaxation of the passive nervous system.
It helps activate the side of rest, calm, and balance.
That is why Frank saw them as two complementary minerals. One reduces excitation; the other increases relaxation. Both, together, help the body get closer to balance.
In the NaturalSlim approach, this combination can be supported with resources such as the MagicMag + Kadsorb Dynamic Duo, always within a broader strategy that includes proper nutrition, hydration, rest, and body observation.
Night cramps: a sign of potassium deficiency
One of the most practical examples Frank used was nocturnal cramps, especially those that appear in the calf or lower leg.
According to his teaching, that cramp is a clear sign of potassium deficiency.
When the body receives potassium and magnesium in combination, Frank said the cramps stop. The explanation is that potassium has a lot to do with muscle and nerve contraction, while magnesium and potassium participate in muscle relaxation.
The body uses calcium to contract and magnesium with potassium to relax.
When these minerals are lacking, the muscle can contract and then not relax properly. This can manifest as a spasm or cramp.
This idea shows a very characteristic way Frank taught: the symptom is not viewed as something isolated, but as a signal from the body asking for something it needs.
Insomnia and lack of energy
Insomnia also appears connected to energy. Frank explained that it had been discovered that one reason the body wakes up or cannot sleep is because it lacks energy.
When ATP fails, the body wakes up as if an alarm is activated, because it does not have enough energy to continue supporting vital functions.
From that perspective, sleeping is not simply closing your eyes. Sleeping depends on the body having enough energy to sustain the resting process.
That is why magnesium and potassium are again part of the explanation. If magnesium participates in ATP production and potassium helps the passive side of the nervous system, both are related to the body's ability to calm down and rest better.
Frank recommended taking magnesium before bed, about two hours before, especially because that is when the body needs it to fall asleep and support rest.
Blood pressure, fluids, and sodium balance
High blood pressure was also connected, in this teaching, to the balance of sodium, potassium, and magnesium.
Magnesium activates the sodium and potassium pump, which helps remove excess salt from the cell. Potassium, by acting as a diuretic, helps the body eliminate fluid and salt.
Frank also connected blood pressure to other factors, such as diet, carbohydrates, glucose, and insulin. He taught that when a person starts to change their diet, lowers carbohydrates, reduces glucose levels, and lowers insulin production, they can improve blood pressure management, especially because insulin can contribute to salt retention.
The central point was not to present an isolated solution, but to show that the body functions as a system. Minerals, diet, glucose, insulin, fluids, and the nervous system are connected.
As Frank always taught, each person should manage their health conditions with their doctor, especially if they use medications for blood pressure, diabetes, heart, or any diagnosed condition.
Muscle pain, inflammation, and constipation
Frank related muscle pain especially to a lack of potassium. When potassium is lacking, pain, spasms, or difficulty for muscles to relax can appear.
He also explained that inflammation can improve when the passive nervous system is supported. When that side is activated, circulation opens, tension in the capillaries is released, more oxygen enters, and inflammation can begin to decrease.
Constipation is also connected to magnesium. The intestine needs natural movement, called peristaltic action, and magnesium is presented as the mineral that helps the intestine move correctly.
Again the same lesson appears: the body gives signals. And when those signals are understood, one can work on the cause instead of just chasing the symptom.
Magnesium citrate and potassium citrate
Frank explained that there are different forms of magnesium. He mentioned that he looked for studies to identify which was more effective and found that magnesium citrate was more bioavailable than other forms.
He also noted that magnesium oxide is less absorbed, although it is often found because it is cheaper.
For Frank, the importance was in the results. If the goal is for the body to utilize the mineral, the absorbable form matters.
In the case of potassium, he also highlighted potassium citrate. He mentioned it as an absorbable form and related it to citric acid's ability to help with kidney stones, especially calcium or oxalate stones.
These explanations are not presented as technical details to complicate the topic, but as part of a practical teaching: it is not enough to say "take magnesium" or "take potassium"; one must understand the form, absorption, and the body's actual need.
How much potassium and magnesium Frank mentioned
Frank explained that the Institute of Medicine of the National Academies had established a daily requirement of 4,700 milligrams of potassium for an adult. He also noted that many people consume less than half of that amount.
In practice, he mentioned that potassium is usually distributed throughout the day, generally with meals, and that the body's response is observed: if cramps or fluid retention disappear, it is a sign that the body is receiving what it needed.
Regarding magnesium, Frank taught a different idea: use it to intestinal tolerance. This means increasing it gradually until the body indicates with mild diarrhea that there has been an excess. Then, one returns to the previous dose.
The teaching was not to take minerals blindly, but to observe the body and adjust intelligently.
Green juices as a natural source of minerals
Frank also reminded that one of the best ways to get magnesium and potassium into the body is through green juices.
Green juices, being full of vegetables, provide minerals that support metabolism.
He clarified that they may not cover all deficiencies accumulated over years, but they can help tremendously. This is an important idea because it connects supplementation with lifestyle.
It is not just about taking something, but about understanding how to nourish the body so that it has the resources it needs.
Knowledge: the tool to take control of the body
One of Frank Suárez's strongest teachings was that often the fault is not that the body is defective, but that the owner of the body does not know how their body works.
That phrase summarizes the philosophy behind this entire explanation. The body is alive, it responds, adapts, and seeks balance. When given what it needs, many functions can improve. But to give it what it needs, one must first understand.
Magnesium and potassium are not presented as a magic solution, but as two essential pieces within a larger system: the cell, energy, the nervous system, sleep, muscles, blood pressure, inflammation, and metabolism.
Frank taught that knowledge allows one to observe the body's signals and act with greater responsibility.
A cramp, insomnia, fluid retention, fatigue, or tension are not seen as enemies, but as messages. And when a person learns to listen to these messages, they begin to have more control over their health and metabolism.
Conclusion
Magnesium and potassium are two basic minerals, but in Frank Suárez's teaching, the basic is often the most powerful.
Both work together within cells, support energy production, participate in the balance between sodium and potassium, help the nervous system, and are related to functions as important as sleeping, relaxing muscles, controlling fluids, and sustaining metabolism.
Magnesium helps lower the body's excitation. Potassium helps activate the passive and relaxing side. Together they form a combination that supports balance.
The underlying lesson is that the body needs knowledge, not guesswork. When one understands how the cell works, how energy is created, and how the nervous system seeks balance, symptoms are no longer seen as isolated events. They become signals pointing to a cause.
And as Frank taught, when one understands the cause, one can begin to truly help the body.
Because the truth always triumphs.
Frequently Asked Questions
Why are magnesium and potassium so important according to Frank Suárez?
Frank taught that both minerals work within cells, support energy production, help the nervous system, and participate in functions such as sleep, blood pressure, muscles, cramps, fluids, and metabolism.
What is the relationship between magnesium and potassium and the cell?
According to Frank, potassium should be primarily inside the cell, sodium outside, and magnesium activates the sodium-potassium pump that maintains this balance.
What is the sodium-potassium pump?
Frank explained it as a biological machine in the cell wall that pumps sodium out and potassium in. This pump needs magnesium to activate correctly.
What is the relationship between magnesium and ATP?
Frank taught that ATP, the body's energy, depends on magnesium. That's why he explained that the cell cannot produce energy well if it lacks magnesium.
Why can nocturnal cramps indicate a lack of potassium?
Frank said that nocturnal cramps, especially in the calf, are often a sign of potassium deficiency. He also explained that potassium works together with magnesium to relax muscles.
How do magnesium and potassium help the nervous system?
Magnesium helps reduce the activity of the excited nervous system. Potassium helps activate the passive, relaxing, and restorative side. Together, they promote a balancing effect.
What type of magnesium did Frank Suárez prefer?
Frank highlighted magnesium citrate as a more bioavailable form and warned that magnesium oxide is less absorbed.
What type of potassium did Frank mention?
Frank highlighted potassium citrate for its absorption and related it to citric acid. He also mentioned that potassium can be distributed throughout the day with meals.
Do green juices provide magnesium and potassium?
Yes. Frank taught that green juices are one of the best natural ways to provide magnesium and potassium because they are full of mineral-rich vegetables.
What is the main lesson of this teaching?
The main lesson is that many symptoms can be signs of mineral deficiency and cellular imbalance. Frank taught to understand the cause, observe the body, and give it the elements it needs to function better.




