Zinc Test

  • cerascreen Zink Test: Analysis of mineral nutrients
  • cerascreen Zink Deficiency Test: Analysis of mineral nutrients

Zinc Test

Mineral analysis

Those who consume too little magnesium in the long term run the risk of developing a magnesium deficiency. Possible consequences of a magnesium deficiency range from calf cramps, fatigue and nausea to depressive moods and a higher risk of cardiovascular diseases.

Want to take your health into your own hands and check your magnesium levels? This self-test is the cerascreen® Mineral Deficiency Test. When you take this test, a sample of your blood is tested for magnesium, selenium and zinc levels in your capillary blood – this is all included in the price. This allows you to identify a potential deficiency in the most important minerals and take targeted action to correct it.

  • Collect your sample conveniently and easily at home
  • Receive a laboratory analysis after a few days
  • Save time: no visits to the doctor, no waiting time
  • Get recommendations that are easy to follow
  • Receive results within 2 to 3 days after the sample’s arrival in the laboratory

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Why test your magnesium levels?

Coronavirus Selbsttest für zuhause

According to the German federal centre of nutrition, 20% of people in Europe consume too little magnesium. If this leads to a permanent magnesium deficiency, you can develop fatigue, nausea and depressive moods, and you will be at greater risk of developing cardiovascular disease.

With the help of your test results, you can optimise your mineral levels in a targeted way. If you take too much magnesium, this may result in a magnesium surplus. If you take a very high dose, you may develop diarrhoea, gastrointestinal discomfort and even a drop in blood pressure.

Precautionary magnesium deficiency tests are not covered by health insurance; if you visit a doctor, you have to pay for the sample analysis yourself. For the cerascreen® Mineral Deficiency Test, on the other hand, you do not have to go to a doctor’s office or clinic – you can do it comfortably at home with the test kit and instructions provided.


Information about the Mineral Deficiency Test

Please Note: The result is basically a snapshot at the time of sampling.

Your test results

Ergebnisbericht des Coronavirus Antikörper Tests

As soon as your sample has been analysed, you will receive your results report via the My cerascreen® app or by logging in on our website. You can easily view the report on your smartphone, tablet or computer and read it printed out, if required.

Find out the concentration of S1 and NP antibodies against SARS-CoV-2 in the laboratory analysis. Learn how to understand the results and when it may be useful to seek medical advice with the help of our recommendations. We also provide further information on vaccination and the Covid-19 pandemic.

FAQs about magnesium deficiency

  • Why should I test my magnesium levels?

    A magnesium deficiency often manifests itself for a long time only through very vague symptoms or is, in some cases, not noticeable at all. In other words, you usually don’t notice if you have a magnesium deficiency.

    Nevertheless, it can disrupt your everyday life, especially if your body permanently receives too little magnesium. You often feel tired, sluggish and depressed, suffer from headaches more often and are restless and unable to concentrate. And in the long term, a magnesium deficiency can even damage the kidneys and blood vessels.

    However, if you take high doses of magnesium supplements because you suspect you may have a deficiency, this can have side effects and even be harmful to your health. Mineral supplements are only recommended if there really is a mineral deficiency.

    A blood test such as the cerascreen® Mineral Deficiency Test will tell you whether this is the case. The laboratory analysis shows you the state of your magnesium reserves – and whether a change in diet or supplements would make sense. The test also determines the concentration of the minerals zinc and selenium.

  • Who should take the test?

    Checking a possible deficiency is worthwhile for many people, as it is hard to consume enough zinc in our diets.

    A magnesium deficiency test is particularly useful if you belong to one of the following risk groups for a deficiency:

    People who do intensive sports, as they lose a lot of zinc through sweat.
    Vegetarians and vegans.
    Pregnant and breastfeeding women, as they also have to supply the foetus or the infant with minerals.
    People with chronic inflammatory bowel diseases.

  • How does the test work?

    For the Mineral Deficiency Test, take a small blood sample from your fingertip using a lancet. The sample is sent in a tube via a return envelope to a specialist diagnostics laboratory.

    The diagnostic laboratory then analyses the concentration of the minerals magnesium, selenium and zinc in your blood.

  • How conclusive is the test?

    The cerascreen® COVID-19 Vaccine Effectiveness Test uses scientifically established measurement processes to analyse Covid-19 antibody blood samples. Such analyses are used, for example, in scientific studies investigating the effectiveness of vaccines or population coverage.

  • What does the results report tell me?

    The detailed results report reveals the measured values of minerals in your blood retrieved from the laboratory analysis.

    You will learn how high the concentration of the mineral zinc is in your blood. The value is measured in millimoles per litre (mmol/l).

    You will also find out how much magnesium in milligrams per litre (mg/l) and selenium in micrograms per litre (μg/l) were detected in your blood.

    You will receive the reference values – that is, the ranges of values within which your mineral concentrations should ideally be.

    The report provides you with valuable information about magnesium, magnesium deficiency and the other minerals. You will learn how to optimise your diet and supplement intake to improve your zinc levels through clear recommendations.

  • What is the ELISA method?

    ELISA stands for ‘Enzyme-Linked Immunosorbent Assay’. It is the standard scientific procedure that laboratories use to detect antibodies in blood. ELISA is used, for example, in allergy tests or in the diagnosis of infectious diseases, and is also the established laboratory method used for antibody tests against SARS-CoV-2.

    The ELISA method works as follows: A special laboratory plate is coated with the virus (the antigen); then your sample is added. If there are antibodies in the sample, complexes of antibody and antigen form on the plate after some time.

    The laboratory then adds a special enzyme that is also bound to an antibody. If there are antibody–antigen complexes on the plate, the new enzyme antibody structures attach themselves to these complexes. The larger complex that is created is called an ELISA sandwich.

    When these so-called sandwiches are formed, a chemical substance added to the enzyme is transformed into a dye that can be seen on the plate. The intensity of this colour later indicates whether there are antibodies in the sample and, if so, at which concentration.

  • What is magnesium?

    Magnesium is a mineral that your body needs for numerous important processes. It is involved in the following tasks:

    Muscle development and function
    Bone and teeth development
    Nervous system
    Heart function and heartbeat

    Magnesium is an essential – that is, an indispensable mineral. This means that the body cannot produce it itself and you have to take it in through your diet. We store 60 per cent of magnesium in our bones and 25 to 30 per cent in our muscles.

  • What causes a zinc deficiency?

    Theoretically, a zinc deficiency can result from malnutrition, but this is rare in central Europe. People who are deficient in zinc often need to increase their zinc intake because their body absorbs too little zinc, they consume a lot of it or they have a special diet.

    A zinc deficiency can be caused, among other things, by very intensive sports, as you thereby release more zinc through sweating.

    A vegan or vegetarian diet increases the risk of deficiency because we absorb zinc from plant-based foods less efficiently than from animal products.

    In addition, people with inflammatory bowel diseases have an increased risk of zinc deficiency. For them, zinc absorption in the intestine may be impaired.

  • What are the symptoms of magnesium deficiency?

    Magnesium deficiency can lead to the following symptoms, among others:

    Tiredness, exhaustion and feelings of weakness
    Weakness in performance and lack of concentration
    Loss of appetite, nausea and vomiting
    Muscle cramps and twitching, numbness in the hands and feet

    In the long term, a magnesium deficiency can cause cardiac arrhythmia and heart pain.

  • Which foods contain zinc?

    Zinc is found in a wide variety of foods – in large quantities, for example, in oysters, cheese (e.g. Emmental), chicken eggs, beef, offal and sunflower seeds, and to a lesser extent in cereals, nuts and legumes.

    Your body can absorb zinc from animal products much better than from plant foods.

    If you have been diagnosed with a zinc deficiency, you can also take zinc supplements. Good supplements contain zinc compounds that your body can absorb well – for example, zinc histidine.

  • What happens when your magnesium levels are too high?

    It is possible to consume too much magnesium. But don’t worry: you won't develop a magnesium surplus from your normal diet. With food supplements, however, you can develop one, which can lead to unpleasant side effects.

    For this reason, professionals recommend that you should not take more than 250 milligrams of magnesium a day in food supplements.

    Symptoms of a magnesium surplus include diarrhoea and other forms of gastrointestinal discomfort. Above a dose of 2,500 milligrams, you may be at risk of magnesium poisoning, which can be accompanied by dangerous drops in blood pressure and muscle weakness.

    You should generally only take mineral supplements for a longer period of time if you have confirmed a deficiency of the mineral through a test.

  • For whom is the test not suitable?

    The COVID-19 Vaccine Effectiveness Test is not suitable for or is only suitable to a limited extent for certain groups of people:

    • People with infectious diseases such as hepatitis and HIV, are not allowed to take the COVID-19 Vaccine Effectiveness Test. 
    • People with haemophilia should not take the blood test.
    • Pregnant and breastfeeding women should only take the COVID-19 Vaccine Effectiveness Test under medical supervision. The reference values and recommendations do not apply to them, so they should seek recommendations on the test result from their doctor.
    • The COVID-19 Vaccine Effectiveness Test  is not suitable for children under 18 years of age.

    The test is not intended for diagnosing acute Covid-19 infection. If you experience flu symptoms, contact your doctor or the public health department by telephone. You can also clarify acute symptoms with a PCR test.


YouTube partner

Rohe Energie’

‘We (Alexandra and Lars) have been dealing extensively with health and the optimisation of quality of life through nutrition since 2005. Only through regular monitoring can we stay on the home stretch to growing old healthily and happily.’

Sports partner

Verena Walter

‘Training and competitions constantly demand my top performance. Through healthy nutrition and necessary recuperation after exerting myself, I try to support my body when it comes to these demands. The test helps me check myself regularly without taking up my time or my doctor’s time.’

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