Ingredient Repository · Ingredient

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Ingredient

Potassium

Essential macro-mineral electrolyte regulating intracellular fluid balance, nerve transmission, and arterial blood pressure.

What it is

Potassium (as potassium citrate or potassium chloride) is the primary intracellular cation in the human body. In Velobiotics formulations such as His-Biotics Sport Multivitamin and BioGain Probiotics Meal, potassium is delivered alongside magnesium, sodium, and microencapsulated probiotics to maintain cellular hydration, electrolyte balance, and muscle endurance.

Also known as: Potassium Chloride, Potassium Citrate

What it does

  • Maintains intracellular fluid volume, osmotic pressure, and cell membrane resting potential.
  • Drives cardiac and skeletal muscle depolarization and muscular contraction.
  • Facilitates nerve impulse transmission across motor and autonomic neural pathways.
  • Offsets sodium-induced arterial vasoconstriction to support healthy blood pressure.

Amplified by probiotics

Intestinal absorption of potassium is rapid and occurs primarily via passive paracellular flux and active H+/K+-ATPase transporters in the colon. Probiotic bacteria produce short-chain fatty acids (like butyrate) that upregulate apical sodium and potassium transport proteins in colonic epithelial cells. Moreover, probiotics maintain gut mucosal barrier integrity and tight junction density, preventing excessive luminal fluid loss and promoting steady electrolyte reabsorption during exercise and digestion.

Typical dose

200–1000 mg/day (in dietary supplements)

The evidence

Evidence: strong

Human clinical trials demonstrate that adequate potassium intake lowers blood pressure, reduces cardiovascular stroke risk, and supports muscular recovery. (Aburto et al. 2013, BMJ; Stone et al. 2016, Nutrients; Weaver CM. 2013, Adv Nutr).

  1. Aburto NJ, et al. Effect of increased potassium intake on cardiovascular risk factors and disease: systematic review and meta-analyses. BMJ. 2013;346:f1378 PubMed ↗
  2. Stone MS, et al. Potassium Intake, Bioavailability, Hypertension, and Glucose Control. Nutrients. 2016;8(7):444 PubMed ↗
  3. Weaver CM. Potassium and health. Adv Nutr. 2013;4(3):368S-377S PubMed ↗

Safety & who should check first

Supplement dosages in single non-prescription products are restricted (typically <100 mg elemental per dose) to avoid gastric erosion. Individuals with severe kidney disease or those taking potassium-sparing diuretics or ACE inhibitors should consult a physician.