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Fitness Health

Recognising your mineral balances is key for overall health and wellbeing. Find out how best to maintain your fluid levels and fitness in your body with this test to boost your fitness performance.


This test measures your:

✔️ Calcium

✔️ Adjusted Calcium

✔️ Potassium

✔️ Sodium

✔️ Chloride

✔️ Bicarbonate

✔️ Urea

✔️ Creatinine

✔️ Glomerular filtration rate (GFR)


Sample collection method:

☝️🩸 Finger prick


Fitness Health
Fitness Health
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£ 60 GBP
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Improve not only your overall health, but your fitness and athleticism through a detailed account of how you can use these important minerals to boost your performance.

Follow up

You can take your health a step further by booking an appointment with a Fitness Coach to discuss your results through your dashboard.

Is this test for me?

Take the Fitness Health Test if you want to focus on your:

  • Energy
  • Long Term Health
  • Diet
  • Fitness
  • Mood

Did you know?

Approximately 40% of your body weight is muscle mass.

Decode your sample in 3 steps.

Salts & Minerals

Electrolytes are salts and mineral, which are found in the blood. They play a vital role in conducting electrical impulses in the body. This electrolyte test can help determine whether there is an electrolyte imbalance in the body.


Magnesium is one of the most important minerals in the body. It helps regulate fluid balance, muscle contractions and nerve signals. What's more, a high-potassium diet may help reduce blood pressure, water retention, and protect against strokes.


The main function of phosphorus is in the formation of bones and teeth. It plays an important role in how the body uses carbohydrates and fats. It is also needed for the body to make protein for the growth, maintenance, and repair of cells and tissues.

Bone Health

Your body requires calcium to maintain healthy bones and teeth. It’s also essential for keeping your nerves, heart, and muscles functioning properly. Since calcium is so important for many of your body’s functions, its levels need to be within a tight range. This test will give you a clearer picture of your bone health.


Not only is calcium important for maintain bone health, but it also plays a big part in muscle metabolism. If your dietary intake of calcium is low, your body will pull calcium from the bones to be utilised for other bodily functions. This test will help you understand if you may be at risk of calcium deficiencies.

Adjusted Calcium

Half of the calcium that travels in the bloodstream is attached to proteins. This form of calcium is inactive. The other half of calcium travels freely and remains active. Measuring only total calcium may not be representative of true calcium status as fluctuations in protein levels can impact calcium. The adjusted calcium test only measures the free, active form of calcium to more accurately gauge your calcium status. 

Kidney Function

The kidneys perform many crucial functions, including maintaining overall fluid balance. regulating and filtering minerals from blood. filtering waste materials from food, medications, and toxic substances. This test will help you understand how efficient your kidney function is through a series of biomarkers and whether you need to make lifestyle and dietary changes according to your kidneys health status.


Potassium is a mineral found naturally in different foods. It acts as an electrolyte, helping transport nutrients in the body and maintaining proper fluid balance.


Sodium is an electrolyte found naturally in different foods. It plays a vital role in nerve and muscle function and helps your body maintain normal fluid balance.


Chloride is another important electrolyte. It is combined with sodium to make table salt. It is needed to keep a correct balance of body fluids, and it is an essential part of the digestive fluid formed within the stomach lining.


When you breathe, you bring oxygen (O2) into your lungs and release carbon dioxide (CO2). Carbon dioxide in your blood is present in three forms: carbonic acid (H2CO3), CO2 dissolved in blood, and bicarbonate (HCO3-), the predominant form. So, bicarbonate is the major form of carbon dioxide in the blood. The kidneys are tight regulators of bicarbonate in the body, excreting it or reabsorbing it in response to acid-base imbalances.


Urea is a waste by-product of protein metabolism. Urea is filtered through the kidneys and excreted in urine. It plays a significant role in the kidney, promoting the reabsorption of water and important molecules from urine.


Creatinine is a waste product from the metabolism of creatine, an amino acid. It is produced in muscle when creatine is broken down to generate energy, and it is then filtered through the kidneys. Therefore, its rate of excretion from the bloodstream is directly related to how well your kidneys function.

Glomerular filtration rate (GFR)

GFR is a test that is used to estimate how much blood passes through the glomeruli each minute. The glomeruli are tiny blood vessels located within nephrons, known as microscopic structural and functional units of the kidney.

Frequently Asked Questions

What are electrolytes?

Electrolytes are chemicals that conduct electricity when mixed with water. They regulate nerve and muscle function, hydrate the body, balance blood acidity and pressure, and help rebuild damaged tissue. The muscles and neurons are sometimes referred to as the “electric tissues” of the body. They rely on the movement of electrolytes through the fluid inside, outside, or between cells. When these substances become imbalanced, it can lead to either muscle weakness or excessive contraction. The heart, muscle, and nerve cells use electrolytes to carry electrical impulses to other cells.

How do I know if my electrolytes are unbalanced?

The body changes its level of electrolytes throughout the day, and minor shifts in levels is not necessarily a cause for concern. For example, the level of your electrolytes can decrease during and after your exercise as the body has exerted energy. Levels can also become unbalanced when the water levels in your body change throughout the day.
However, the level of an electrolyte in the blood can become too high or too low, leading to an imbalance. This can be caused by more intense causes such as the rapid loss of fluids through diarrhea or vomiting. These electrolytes must be replaced to maintain healthy levels. The kidneys and several hormones regulate the concentration of each electrolyte. If levels of a substance are too high, the kidneys filter it from the body, and different hormones act to balance the levels.
Signs of an electrolyte imbalance are an overall feeling of weakness, muscle spasms, brain fog, fatigue, and changes in blood pressure. Regular monitoring and consuming electrolytes after intense exercise or sweating profusely can help to preserve levels. Be sure to stay hydrated at all times.