Benefits of Potassium: muscles, nerves and hydration

Muscles and nerves

Potassium contributes to normal muscle function and the proper functioning of the nervous system.

Hydration

A key electrolyte, it contributes to the body's fluid balance, working in close conjunction with sodium.

During maternity

A useful support when hydration needs increase, in warm weather or after physical exertion.

Origin and description

Potassium is an essential mineral and the main electrolyte found inside cells. It contributes to the body's fluid balance, normal muscle function and the functioning of the nervous system. Among the most recognised benefits of potassium are support for muscles, nerves and hydration.

At every stage of motherhood, from pregnancy to breastfeeding, hydration needs increase, especially in warm weather or after physical exertion. Potassium works in balance with sodium to maintain the right amount of water in the body.

At Jolly Mama, potassium is part of the Electrolytes formula, designed to support everyday hydration.

Potassium is a mineral stored largely inside cells, while sodium is found mainly outside them. This sodium-potassium balance is at the heart of many bodily functions. Intake comes from diet: fruits, vegetables and legumes are the richest sources of potassium. The adequate intake set by EFSA is 3,500 mg per day for an adult, but average intakes in France remain below this reference, due to insufficient consumption of fruits and vegetables.

The form matters as much as the mineral. In an electrolyte product, potassium is combined with other minerals such as sodium and magnesium to support rehydration. The potassium salts used and their dosage determine the quality of the supplement, ensuring consistency and traceability from one batch to the next.

Did you know: the banana is the food most commonly associated with potassium, but many others provide just as much, if not more, such as potatoes or lentils.

Potassium in the diet

Potassium is an essential mineral covered primarily through diet. Fruits, vegetables and legumes are the richest sources: the banana is often associated with it, but potatoes or lentils provide just as much, if not more. In the body, potassium works in close balance with sodium to maintain the right amount of water. In practice, average intakes often fall below reference values, due to insufficient consumption of fruits and vegetables. A varied, colourful plate therefore remains the primary source of potassium.

Potassium as a supplement

When diet is not enough, or when losses are greater through perspiration, potassium is also available as a supplement. It is then often combined with other minerals, such as sodium and magnesium, in an electrolyte product designed to support rehydration. Quality depends on the potassium salts used and their dosage, ensuring consistency and traceability from one batch to the next. A targeted intake can help top up daily intakes that are sometimes insufficient, without ever replacing a balanced diet rich in fruits and vegetables.

Muscles
Potassium contributes to normal muscle function, a useful support when it comes to muscle cramps and tension during pregnancy.
Nervous system
Potassium contributes to the normal functioning of the nervous system and healthy transmission of signals between cells.
Hydration
As a key electrolyte, potassium contributes to the body's fluid balance, working closely with sodium.
Blood pressure
Potassium contributes to the maintenance of normal blood pressure, as part of a balanced diet.

How does it work? (The science bit)

Potassium is the main electrolyte inside cells, while sodium is the main one outside. This difference in concentration, maintained by the sodium-potassium pump, creates the electrical charge that enables nerve impulse transmission and muscle contraction. Potassium also contributes to the body's fluid balance and acid-base balance.

EFSA recognises three benefits of potassium: it contributes to normal muscle function, normal functioning of the nervous system and the maintenance of normal blood pressure. The adequate intake is 3,500 mg per day, ideally covered through fruits and vegetables. During periods of greater loss — through perspiration in heat or during exercise — an electrolyte intake can help replenish potassium and sodium.

During motherhood, hydration needs are increased, and electrolyte balance deserves particular attention. As with any mineral, the benefit of potassium is measured over time, as part of a varied diet and your energy and vitality.

Key takeaway: potassium is an essential electrolyte for muscles, nerves and fluid balance, with three benefits recognised by EFSA. The adequate intake is 3,500 mg per day, ideally through fruits and vegetables. Exercise caution in cases of kidney disease.

Our sources

Potassium contributes to normal muscle function, making it a useful mineral when cramps occur. During heavy perspiration, whether from heat or exertion, the body loses electrolytes, including potassium and sodium. An adequate intake, alongside good hydration, can help restore balance. A diet rich in fruits and vegetables remains the foundation.

During pregnancy and breastfeeding, hydration needs increase and electrolyte balance becomes more important. Potassium contributes to this balance, alongside a varied diet and adequate water intake. Needs are met primarily through fruit, vegetables and legumes, with supplementation providing support where helpful.

In a healthy person, excess potassium from food is eliminated by the kidneys. An imbalance in blood potassium levels — whether excess (hyperkalaemia) or deficiency (hypokalaemia) — primarily affects people with kidney disease or those taking certain medications. This is why potassium supplements are dosed with care and do not replace a balanced diet.

Potassium requires care in cases of kidney disease or when taking certain medications, such as diuretics or blood pressure treatments, which alter potassium levels in the blood. If you are pregnant, breastfeeding, undergoing treatment, or in any doubt, seek advice from a healthcare professional before taking a supplement.

Load more questions

Potassium: supporting your muscles, nerves and hydration

Origin and description

Potassium in the diet

Potassium as a supplement

Why is potassium your ally throughout motherhood?

Muscles

Nervous system

Hydration

Blood pressure

How does it work? (The science bit)

Your questions, our answers.

Potassium: supporting your muscles, nerves and hydration

Origin and description

Potassium in the diet

Potassium as a supplement

Muscles

Nervous system

Hydration

Blood pressure

How does it work? (The science bit)

Your questions, our answers.

Does potassium help with cramps or hot flushes?

Potassium during pregnancy or breastfeeding: what are the benefits?

Can you take too much potassium?

What precautions should I know about with potassium?

Our other ingredients

Magnesium bisglycinate

Selenium

Iodine