Nutri Courses

Advisory

Potassium

Potassium is an essential mineral for the human body, playing a key role in many bodily functions. It is one of the main electrolytes in the body, helping to regulate fluid balance, maintain normal blood pressure, and support proper nervous system function. Its primary sources in the diet are fruits, vegetables, whole grain products, meat, and dairy products. A deficiency in potassium in the body can lead to a variety of health issues, including muscle weakness, irregular heartbeats, and high blood pressure.

Hello,

I have a question regarding potassium salt. If my diet includes around 5000 mg of potassium and the potassium to sodium ratio is approximately 6:1, it may not be advisable to use potassium salt, correct? It might be better to use regular salt in this case and focus on reducing the amount of potassium instead? Or is it unnecessary, and I don’t need to particularly lower the potassium intake?

The ratio of potassium to sodium should be balanced, as an excess of either element has its consequences - for sodium, for example, it can lead to increased blood pressure, while for potassium, it can affect heart rhythm or muscle function. A ratio of 6:1 is already higher, although, on the other hand, the overall amount of potassium does not reach an extreme, so this situation under normal conditions is not health-threatening (theoretically, it may lead to increased fatigue due to low sodium intake, especially in physically active individuals). Nonetheless, it is not advisable to use potassium salt; prefer sources of NaCl. Do not reduce potassium here; it is more reasonable (and practically easier) to slightly increase sodium intake.

Hello,

From a nutritional perspective, how do all forest mushrooms (porcini, chanterelles, parasol mushrooms, slippery jacks, etc.) stand? Besides the mentioned fiber and potassium, do they contain any other micronutrients or minerals?

Mushrooms are a key source of fiber, which is their most important nutritional property. In addition to this, they have the ability to absorb chemical substances from their surroundings, and this also applies to minerals. When assessing the potential advantages or disadvantages of their consumption, it is important to consider the type of soil in which they were grown, as this influences their overall nutritional profile. In relation to the content of minerals, the concentration of these minerals in the soil plays a role, so it is not possible to generalize the mineral composition of mushrooms, as the values vary significantly.

Hello Mr. Jelínek,

how appropriate do you find the inclusion of products like Salka, where "traditional" salt is mixed with potassium salt? From the perspective of the sodium-potassium pump balance, it doesn't seem completely inappropriate to me.

These mixtures are advantageous because they allow for the correction of sodium intake, the amount of which is significantly excessive in the diet of the average population. At the same time, they are a source of potassium, for which it is desirable to aim to achieve an intake at least around the values of the Recommended Daily Allowance (RDA), which, unlike sodium, is relatively challenging in practice. The excess of sodium is also related to the imbalance between Na:K, along with all its known consequences.

Questions answered by

Mgr. Martin Jelinek
Lecturer and author of the educational system

Mgr. Martin Jelínek has been systematically involved in nutrition education since 1999. He is the founder of ATAC, the educational company behind NutriCourses, and the author of an educational system focused on nutrition, healthy lifestyle, and the practical application of nutrition knowledge.

He graduated from the Faculty of Science at Masaryk University in Brno. Throughout his professional career, he has combined nutrition, education, and the practical application of acquired knowledge. His educational system also includes the ZOF (Zone of Optimal Functioning) learning application, where students turn theory into practical work with meal plans.

In 2007, he launched the first intake of a six-month course focused on the education of nutrition advisors. Over time, this course became the foundation for the further development of the educational system and a range of specialised courses.