Sodium

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,

You write that the recommended daily allowance is 500 mg of sodium, and for athletes, it can be up to 2000 mg. How should I properly set this value for a client? How can I find out how much sodium a person has lost through exercising?

Thank you.

You will never set the exact value; it is not feasible and essentially not the goal when creating a meal plan. The principle (not only in this direction) is to strive for the nutrient content you want to monitor in the diet to move towards values that are generally (populationally) presented while roughly corresponding to the needs of the individual for whom you are designing the meal plan.

In the case of sodium content, it is necessary to learn to balance its amount in the diet with the level of physical activity and the degree of sweating, where the greatest losses from the body occur due to the sum of both factors. That is why the difference between the two values is so significant, but in practice, it can be much greater. You will never know exactly how much sodium is lost during physical activity. In research, sweat analyses are conducted and the contents of individual minerals are monitored, from which commonly presented population recommendations are subsequently derived. These should be considered truly general. If sodium intake is too low, you will notice this in practice after a few days of such a deficit through increased fatigue—athletes are able to define this state better by feeling because they perceive their bodies much more sensitively than the non-athletic population.

Hello,

Is there a significant difference between using regular salt and other types of salt in terms of sodium content and other minerals? You've already written something about Himalayan salt, but what about other types of salt? Is there any particular type that should generally be avoided? (Of course, this is meant for healthy individuals).

The difference between them in relation to sodium content is not particularly significant. From a nutritional standpoint, the key role is played by the amount of other minerals (most commonly = in the greatest concentration, it is iron, followed by manganese, and in fortified products, a higher presence of iodine and fluoride). From this perspective, salt is a crucial source of sodium, and for these reasons, it is necessary to regulate its amount in daily diet. At first glance, salts containing, for example, iron (typically lava salt, which is a significant source of it) might seem more advantageous, but the "issue" with these is that the iron is of inorganic origin (thus not very biologically available). For the past few decades, iodized salt has been the standard in our inland conditions due to the need to increase the intake of deficient iodine for thyroid function. The added iodine practically has no effect on the sodium content, since sodium is a macro-element while iodine is measured in micrograms.

Hello,

My friend and I were discussing sodium, and he pointed out that if the RDA for sodium is 500 mg, it doesn't match the recommended intake of 5 g of salt. According to the calculation of molar masses, it supposedly turns out that in a dose of 5 g of salt, there is approximately three times the RDA of sodium.

Could you please clarify how this is?

Thank you.

This truly does not correspond - the RDI (Recommended Daily Intake) of sodium is 500 mg, which is seen by the creators of this recommendation as the minimum amount necessary to maintain key biological processes in the body. In real life, you will encounter such values only exceptionally, most often in individuals with eating disorders or in the context of weight reduction diets of some athletes competing in weight categories.
The situation differs in relation to the recommended salt intake - salt (NaCl) is the richest source of sodium (containing 40%), so 5 grams represents 2000 mg of sodium, which is four times the RDI of this element. However, this limit is defined as the amount that does not support the development of health problems associated with sodium excess (strain on the kidneys, lymphatic system, cardiovascular system...), therefore it does not relate to the minimum needs of the organism.