Potassium (as Potassium Bisglycinate Chelate) (TRAACS®)
Mechanism of Action +
### The Sodium-Potassium Pump (Na+/K+-ATPase) Potassium's primary physiological role is mediated through the sodium-potassium pump, an electrogenic transmembrane ATPase found in the membrane of all animal cells. This enzyme utilizes the energy from ATP hydrolysis to pump three sodium ions out of the cell and two potassium ions into the cell against their respective concentration gradients. This continuous active transport maintains a high intracellular potassium concentration (approximately 140 mEq/L) and a low extracellular concentration (3.5-5.0 mEq/L). This steep concentration gradient is the fundamental basis for the resting membrane potential, which is critical for the excitability of nerve and muscle cells. By maintaining this electrochemical gradient, potassium directly regulates cellular volume, osmotic balance, and the functional integrity of the cell.
### Action Potentials and Nerve Transmission In the nervous system, potassium is the primary ion responsible for the repolarization phase of the action potential. When a neuron is stimulated, voltage-gated sodium channels open, allowing sodium to rush in and depolarize the cell. Immediately following this, voltage-gated potassium channels open, allowing intracellular potassium to efflux down its concentration gradient. This rapid exit of positive charge restores the negative resting membrane potential, resetting the neuron so it can fire again. Without adequate intracellular potassium, nerve transmission becomes sluggish or erratic, leading to neurological symptoms such as lethargy, confusion, and impaired reflex arcs.
### Excitation-Contraction Coupling in Skeletal and Cardiac Muscle Potassium is absolutely vital for muscle contraction, including both voluntary skeletal muscle movement and the involuntary rhythmic contractions of the myocardium (heart muscle). During excitation-contraction coupling, the action potential travels down the T-tubules of the muscle fiber, triggering the release of calcium from the sarcoplasmic reticulum. The subsequent repolarization of the muscle cell membrane, driven by potassium efflux, is necessary for the muscle to relax and prepare for the next contraction. In the heart, potassium channels dictate the duration of the cardiac action potential and the refractory period. Hypokalemia (low potassium) can lead to delayed repolarization, manifesting as U-waves on an ECG and increasing the risk of fatal arrhythmias like ventricular fibrillation. In skeletal muscle, inadequate potassium disrupts the relaxation phase, contributing to severe muscle cramps, spasms, and in extreme cases, rhabdomyolysis.
### Endothelial Function and Vasodilation Potassium plays a crucial role in cardiovascular health by acting as a natural counterbalance to sodium. High dietary sodium increases blood volume and vascular resistance, elevating blood pressure. Potassium counteracts this through several mechanisms. First, it promotes natriuresis (the excretion of sodium in the urine) by inhibiting sodium reabsorption in the renal tubules. Second, potassium directly induces vasodilation of vascular smooth muscle cells. It achieves this by hyperpolarizing the endothelial cell membrane, which increases the production and release of endothelial nitric oxide (eNO). Nitric oxide diffuses into the adjacent smooth muscle, causing relaxation and a subsequent drop in systemic vascular resistance and blood pressure.
### Pharmacokinetics of Bisglycinate Chelation (TRAACS®) The pharmacokinetics of potassium absorption are dramatically altered when it is delivered as a bisglycinate chelate. Standard potassium salts (like potassium chloride or potassium carbonate) dissociate rapidly in the highly acidic environment of the stomach (pH 1.5-3.5), leaving the free potassium ion exposed. These free ions can irritate the gastric mucosa, leading to the nausea and gastrointestinal distress commonly associated with potassium supplements. Furthermore, free mineral ions are susceptible to binding with dietary inhibitors (like phytates or oxalates) in the digestive tract, forming insoluble complexes that are excreted in the feces.
TRAACS® (The Real Amino Acid Chelate System) technology, developed by Albion Minerals, circumvents these issues. In a bisglycinate chelate, the potassium ion is covalently bonded to the carboxyl and amino groups of two glycine molecules, forming a stable, heterocyclic ring structure. This neutral, stable complex protects the potassium ion from gastric acid and prevents it from interacting with dietary inhibitors.
Upon reaching the small intestine (specifically the jejunum and ileum), the intact chelate is absorbed not through standard paracellular diffusion or competitive mineral ion channels, but rather through dipeptide transport proteins (such as PEPT1). Because the body readily absorbs amino acids and dipeptides, the chelated potassium is actively transported across the enterocyte membrane with high efficiency. Once inside the enterocyte or the bloodstream, cytoplasmic enzymes hydrolyze the bond, releasing the free potassium ion for systemic use and the glycine molecules, which can be utilized for protein synthesis or as inhibitory neurotransmitters. This targeted delivery system ensures maximal bioavailability while virtually eliminating the gastrointestinal side effects associated with traditional potassium supplementation.
What is TRAACS bisglycinate chelate? +
What are TRAACS in supplements? +
What should you not mix with potassium supplements? +
Can potassium be chelated? +
What medications should not be taken with potassium supplements? +
Why should you not lay down after taking a potassium pill? +
Can too much potassium trigger AFib? +
Does potassium affect bowel movements? +
Why is OTC potassium limited to 99mg? +
What is the difference between potassium glycinate and potassium citrate? +
How does potassium help with muscle cramps? +
Can potassium lower blood pressure? +
What is the sodium-potassium pump? +
Is potassium bisglycinate safe for kidneys? +
When is the best time to take potassium? +
Does potassium bisglycinate cause stomach upset? +
How do I know if I have a potassium deficiency? +
Can I get enough potassium from food alone? +
Everything About Potassium (as Potassium Bisglycinate Chelate) (TRAACS®) Article
## Introduction to Potassium Bisglycinate When most people think of potassium, they picture a banana. However, this essential mineral is a biochemical powerhouse responsible for keeping your heart beating, your muscles contracting, and your cells perfectly hydrated. While potassium is abundant in a healthy diet, athletes, heavy sweaters, and those on low-carb diets often burn through their potassium stores rapidly.
Enter Potassium Bisglycinate Chelate, specifically the patented TRAACS® form by Albion Minerals. Unlike standard potassium salts found in cheap electrolyte drinks, this advanced form binds potassium to the amino acid glycine. The result is a highly bioavailable, stomach-friendly electrolyte that absorbs efficiently to fuel peak athletic performance and overall health.
## What is TRAACS® Technology? TRAACS® stands for "The Real Amino Acid Chelate System." Developed by Albion Minerals (now part of Balchem), this technology represents the gold standard in mineral supplementation.
In nature, minerals are inorganic elements that the human digestive system struggles to absorb efficiently. When you take a standard mineral salt (like potassium chloride), the acidic environment of your stomach breaks it apart. The free potassium ion is then left to fend for itself—often causing gastric irritation, binding to anti-nutrients in your food, or simply being flushed out of your system.
TRAACS® solves this by "chelating" the mineral. Chelation is a process where the potassium ion is firmly bound to two molecules of glycine (an amino acid). This creates a stable, neutral ring structure that protects the potassium as it travels through the harsh environment of the stomach. Once it reaches the small intestine, the body recognizes the glycine and absorbs the entire molecule through specialized amino acid transport channels (like PEPT1). This "Trojan Horse" delivery system ensures that the potassium gets into your bloodstream and cells where it belongs, without causing the nausea or bloating associated with cheap mineral supplements.
## The Critical Role of Potassium in the Body Potassium is an electrolyte, meaning it carries an electrical charge when dissolved in bodily fluids. It is the primary *intracellular* cation (positive ion inside the cell), while sodium is the primary *extracellular* cation (positive ion outside the cell).
Together, they operate the sodium-potassium pump, an enzyme located in the membrane of every cell in your body. This pump constantly moves sodium out and potassium in, creating an electrochemical gradient. This gradient is the literal spark of life—it is the electrical charge that allows your brain to send signals, your heart to beat, and your muscles to flex.
## Muscle Contraction and Cramp Prevention For athletes, potassium is non-negotiable. Every time you lift a weight or take a stride, your brain sends an action potential to your muscles. Sodium rushes into the muscle cell to trigger the contraction. But to relax that muscle and prepare it for the next rep, potassium must rush *out* of the cell.
If your potassium levels are depleted from heavy sweating or poor diet, this relaxation phase is delayed. The muscle gets stuck in a contracted state, leading to painful cramps, spasms, and premature fatigue. Supplementing with a highly absorbable form like Potassium Bisglycinate ensures your muscles have the intracellular reserves needed to fire and relax smoothly, rep after rep.
## Cardiovascular Health and Blood Pressure According to the American Heart Association, potassium is one of the most effective dietary interventions for managing high blood pressure. Modern diets are notoriously high in sodium and low in potassium. Excess sodium pulls water into your blood vessels, increasing blood volume and driving up blood pressure.
Potassium acts as the ultimate counterbalance. It signals your kidneys to excrete excess sodium through your urine. Furthermore, potassium directly relaxes the walls of your blood vessels (vasodilation), reducing the resistance against which your heart has to pump.
## Fluid Balance and the "Pump" In the bodybuilding and fitness world, the "pump" is highly sought after. While nitric oxide boosters get all the credit, true muscle fullness is driven by cellular hydration. Because potassium lives inside the cell, adequate potassium levels draw water *into* the muscle tissue (intracellular hydration). This not only makes muscles look fuller and denser but also creates an anabolic environment that supports protein synthesis and prevents muscle breakdown.
## Why Choose a Bisglycinate Chelate? If you've ever taken a standard potassium supplement on an empty stomach, you likely experienced a wave of nausea. Potassium salts are notorious gastric irritants. In fact, high doses of standard potassium pills can actually burn lesions into the stomach lining.
Potassium Bisglycinate bypasses this entirely. Because the potassium is shielded by glycine, it does not interact with the stomach mucosa. It is incredibly gentle, making it the perfect choice for intra-workout formulas or daily health supplements where gastrointestinal comfort is paramount.
## Dosage and OTC Limitations (The 99mg Rule) If you look at the supplement facts panel of any over-the-counter potassium capsule or tablet in the United States, you will notice the dose never exceeds 99mg. This is not because 99mg is the optimal dose—in fact, the daily recommended intake for potassium is between 3,400mg and 4,700mg!
The 99mg limit is an FDA regulation specific to solid dosage forms (pills/capsules) of potassium salts. Historically, high-dose, slow-release potassium chloride pills were found to cause severe small bowel lesions and ulcers because a large concentration of the caustic salt would sit in one spot in the digestive tract. To prevent this, the FDA capped OTC pills at 99mg (about 2% of your daily value).
Because of this limitation, supplemental potassium in pill form is best used to bridge small gaps in the diet or to provide a highly bioavailable, targeted dose of electrolytes (like TRAACS®) alongside other minerals in a comprehensive hydration matrix.
## Potential Side Effects and Drug Interactions While potassium from food is safe for virtually everyone, potassium supplements require respect, particularly for individuals with specific medical conditions.
**Kidney Function:** The kidneys are responsible for filtering out excess potassium. If you have Chronic Kidney Disease (CKD), your kidneys cannot perform this function efficiently. Taking potassium supplements can lead to hyperkalemia (dangerously high potassium levels), which can cause fatal heart arrhythmias.
**Medication Interactions:** Several common blood pressure medications, specifically ACE inhibitors (e.g., lisinopril) and Angiotensin II Receptor Blockers (ARBs, e.g., losartan), cause the body to retain potassium. Potassium-sparing diuretics (like spironolactone) do the same. Combining these drugs with potassium supplements is highly dangerous and should be strictly avoided unless prescribed by a doctor.
Additionally, anticholinergic drugs (which slow down digestion) can increase the risk of potassium pills causing stomach irritation, as the pill remains in the GI tract longer.
## Stacking and Synergies To maximize the benefits of Potassium Bisglycinate, consider stacking it with: * **Sodium:** The yin to potassium's yang. For athletes, replacing both sodium (extracellular) and potassium (intracellular) is vital for complete hydration. * **Magnesium Bisglycinate:** Magnesium is required for the sodium-potassium pump to function. Without magnesium, your body cannot hold onto potassium. * **Taurine:** An amino acid that acts as an osmolyte, working synergistically with potassium to draw water into muscle cells for enhanced endurance and pumps.