Self-tests for nutrient deficiencies: Reliable laboratory results for your health!
What is nutrient deficiency, and why should I take it seriously?
Nutrient deficiencies are more common than many people think. Studies in Germany show that one in three people has at least one nutrient deficiency—often without realizing it. The symptoms develop gradually and are often attributed to other causes.
The tricky part is that our bodies can compensate for deficiencies for a long time, but eventually the consequences appear. Chronic fatigue, brittle nails, hair loss, and concentration problems are often your body's cries for more nutrients.
The solution is simple: With a scientifically sound nutrient test, you can quickly and reliably find out which nutrients your body lacks—and then take targeted action.
Why are mybody-x self-tests so reliable?
You may be wondering: Can I really trust a self-test? Especially when it comes to health. The answer: Yes—if the self-test is conducted in a certified laboratory.
What makes a reliable nutrient self-test:
🔬 ISO-certified specialist laboratory
mybody-x works with an ISO 27001-certified laboratory in Germany. This means the same quality standards as a doctor's visit—just more conveniently from home.
🧬 Scientifically sound methods
We test only nutrient markers with scientifically proven relevance. No miracle tests, no uncertain methods—only what really matters.
🛡️ Highest data protection standards
Your sample is sent in pseudonymized form. The DNA & sample are automatically destroyed after analysis. GDPR-compliant, private, and secure.
📊 Easy-to-understand results
You receive more than just numbers. The report explains your values in clear language with specific recommendations for action—personalized for you.
💬 Personal consultation
Not sure how to interpret your results? mybody-x offers free consultations with experts. You are not alone.
⏱️ Fast results
15–25 business days from submitting your sample to receiving your results report. Faster than many medical practices, and more convenient from home.
Self-test vs. doctor's visit: Which is better?
| Criterion | Self-test (mybody-x) | Doctor's visit |
|---|---|---|
| Convenience | ✅ From home, in 2 minutes | ❌ Appointment, waiting time, travel |
| Cost | ✅ Affordable (€139–€269) | ❌ Often not covered by health insurance |
| Laboratory quality | ✅ ISO-certified, same as a doctor's | ✅ Doctor's laboratory (but more expensive) |
| Scope | ✅ 16+ nutrients in one test | ❌ Often only 3–4 tests |
| Clarity | ✅ Simple, clear reports | ⚠️ Often unclear; doctors explain little |
| Data protection | ✅ Pseudonymized, GDPR-compliant | ⚠️ In your patient record, stored longer |
💡 The bottom line:
Self-tests like those from mybody-x are just as reliable as visiting a doctor—often even better, because you can test more nutrients and the results are presented more clearly. The laboratory quality is identical, but the convenience is unparalleled.
The 16 Most Important Nutrients: Symptoms You Should Know
But first: What should you look for in an at-home nutrient test?
Not all nutrient tests are the same. Before buying a test, you should look for these quality criteria:
✅ A good test should have:
- ISO certification – The laboratory must be certified
- Broad nutrient coverage – At least 10–15 nutrients, not just 2–3
- Understandable results – Not just numerical values, but explanations
- Personalized recommendations – What exactly should you do with the result?
- Scientific validity – Only proven nutrient markers
- Data protection & anonymity – Your data is secure
- Expert consultation – You can ask questions
- German laboratory analysis – Controlled quality on site
mybody-x meets all of these criteria – making it the best choice for reliable at-home nutrient tests.
Each nutrient has its own role in your body. When one is lacking, you often notice it first through specific symptoms. Here are the 16 nutrients that most frequently cause problems:
🌞 Vitamin D3
Role: Bones, immune system, mood
Symptoms of deficiency:
- Constant fatigue & lack of energy
- Depressed mood (especially in winter)
- Susceptibility to infections
- Bone pain
- Muscle weakness
🧠 Vitamin B12
Role: Nerves, energy, blood formation
Symptoms of deficiency:
- Concentration problems & memory impairment
- Tingling in fingers & toes
- Chronic fatigue
- Paleness
- Nervousness & mood swings
💪 Iron (ferritin)
Role: Oxygen transport, energy
Symptoms of deficiency:
- Leaden fatigue
- Shortness of breath during light exertion
- Headaches & dizziness
- Hair loss
- Brittle nails
⚡ Magnesium
Role: Muscles, nerves, relaxation
Symptoms of deficiency:
- Muscle cramps & tension
- Nervousness & feelings of anxiety
- Sleep problems
- Headaches & migraines
- Heart palpitations
🦴 Calcium
Role: Bones, teeth, muscles
Symptoms of deficiency:
- Brittle nails & hair
- Dental problems & bleeding gums
- Muscle cramps
- Bone pain
- Risk of osteoporosis
🛡️ Zinc
Role: Immune system, wound healing, skin
Symptoms of deficiency:
- Frequent infections
- Poor wound healing
- Hair loss
- Skin problems & acne
- Taste disturbances
🧬 Folic acid (vitamin B9)
Role: Cell division, DNA, mental health
Symptoms of deficiency:
- Fatigue & lack of drive
- Memory problems
- Depressed mood
- Paleness
- Digestive problems
🔬 Selenium
Role: Antioxidant, thyroid
Symptoms of deficiency:
- Fatigue
- Thyroid problems
- Weak immune system
- Hair loss
- Susceptibility to infections
🧬 Manganese
Role: Bone formation, metabolism
Symptoms of deficiency:
- Bone pain
- Weight problems
- Fatigue
- Irritability
- Movement problems
🔴 Copper
Role: Iron metabolism, connective tissue
Symptoms of deficiency:
- Anemia despite sufficient iron
- Brittle bones
- Hair problems
- Nerve disorders
- Weakened immune system
🧂 Sodium (electrolytes)
Role: Fluid balance, nerves
Symptoms of deficiency:
- Headaches & dizziness
- Muscle cramps
- Confusion
- Loss of appetite
- Weakness
🚚 Transcobalamin (active form of B12)
Role: B12 absorption & transport
Symptoms of deficiency:
- Symptoms like B12 deficiency
- Absorption problems
- Neurological deficits
- Low energy
- Memory impairment
❤️ HDL cholesterol
Role: Heart health, good cholesterol
Symptoms of deficiency:
- Increased heart attack risk
- Stroke risk
- Vascular problems
- Atherosclerosis risk
- Chronic inflammation
⚠️ LDL cholesterol (high level)
Role: Cell function (but too much is harmful)
Symptoms of excess:
- No direct symptoms (often unnoticed!)
- Increased heart attack risk
- Vascular calcification
- Stroke risk
- Atherosclerosis
📊 Triglycerides (blood fats)
Role: Energy reserve (but monitoring is important)
Symptoms of excess:
- No direct symptoms
- Increased heart attack risk
- Stroke risk
- Abdominal fat accumulation
- Atherosclerosis
🦗 Iodine
Role: Thyroid, metabolism
Symptoms of deficiency:
- Fatigue & lack of drive
- Weight gain
- Goiter formation (thyroid)
- Feeling cold
- Memory problems
Overview table: The 16 nutrients at a glance
| Nutrient | Main functions | Most common symptoms | Risk groups |
|---|---|---|---|
| Vitamin D3 | Bones, immune system, mood | Fatigue, depression, infections | Little sun exposure, fall/winter |
| Vitamin B12 | Nerves, energy, blood formation | Memory problems, tingling, fatigue | Vegans, gastrointestinal problems |
| Iron (ferritin) | Oxygen transport, energy | Fatigue, hair loss, shortness of breath | Women, vegetarians, heavy bleeding |
| Magnesium | Muscles, nerves, relaxation | Cramps, nervousness, sleep problems | Athletes, stress, diarrhea |
| Calcium | Bones, teeth, muscles | Brittle nails, dental problems | Women, lactose intolerance |
| Zinc | Immune system, wound healing | Infections, hair loss, skin problems | Vegans, older people |
| Folic acid (B9) | Cell division, DNA, mental health | Fatigue, depression, memory problems | Vegetarians, pregnant women, people who drink alcohol |
| Selenium | Antioxidant, thyroid | Fatigue, hair loss, weakened immune system | Selenium-poor soils, smokers |
| Manganese | Bone formation, metabolism | Bone pain, fatigue | Poor diet |
| Copper | Iron metabolism, connective tissue | Anemia, brittle bones | Excessive zinc supplementation |
| Sodium | Fluid balance, nerves | Headaches, cramps, weakness | Excessive sweating |
| Transcobalamin | B12 absorption & transport | As with B12 deficiency, neurological symptoms | Absorption disorders |
| HDL cholesterol | Heart health (positive) | Heart attack risk, stroke risk | Lack of exercise, poor diet |
| LDL cholesterol | Cell function (too much is harmful) | No visible symptoms | High-fat diet, overweight |
| Triglycerides | Energy reserve (monitoring needed) | No visible symptoms | Sugar, alcohol, overweight |
| Iodine | Thyroid, metabolism | Fatigue, weight gain, feeling cold | Low-iodine diet, certain regions |
The right tests for your nutrient analysis
Now that you know which nutrients are important, the practical question is: How can I find out which ones I’m lacking?
With a comprehensive blood test, you can check all 16 of these nutrients at the same time. The best part: you don’t have to go to the doctor—you can conveniently take the test at home.
💡 Why a professional test makes sense:
- ✅ Accurate values instead of guesswork
- ✅ Personalized recommendations based on your values
- ✅ Early detection of deficiencies
- ✅ Monitoring during supplementation
- ✅ Scientifically based & certified
Recommendation 1: VitalCheck Complete – The Comprehensive Solution
The VitalCheck Complete Test is the best choice if you want a complete overview. This test covers all 16 nutrients we discussed above:
- 🔬 All 16 nutrients in one test
- 📊 Detailed values & analysis
- 📝 Personalized recommendations
- 🏥 Certified German laboratory
- 💻 Results available digitally
With the VitalCheck Complete, you receive not just bare numbers but also specific recommendations for how to optimize your values.
Recommendation 2: Longevity – The Premium All-in-One Solution
If you want more than just individual nutrients and are looking for a complete health overview, the Longevity Test is the best choice. It combines:
- 🧬 DNA analysis (genetic predispositions)
- 🩸 All blood nutrients
- 🧠 Metabolic profiles
- 💪 Fitness & exercise recommendations
- 🍽️ Nutrition recommendations
The Longevity Test is ideal if you want to understand your health holistically and optimize it over the long term.
Recommendation 3: Individual Rapid Tests (Budget Option)
If you only want to test specific individual nutrients (e.g., because you already know that you have a vitamin D deficiency), you can also start with individual rapid tests – e.g., for vitamin D, iron, or thyroid function.
🎯 My recommendation:
Start with the VitalCheck Complete. This gives you a complete overview of all 16 nutrients, allowing you to take targeted action.
To the VitalCheck Complete Test →How a nutrient test works: The complete process
You may be wondering: How does a test like this work? It’s easier than you think!
- Order the test online – You will receive the kit by post
- Collect your sample at home – Just a few drops of blood, easily collected using the enclosed instructions
- Send the sample back – Free of charge in a return envelope
- Laboratory analysis – You will receive your results after 15–25 business days
- Understand your results – Detailed report with your values and recommendations
- Take action – Follow the recommendations for more energy & better health
You can also read our detailed guide to the process if you need precise instructions.
Frequently Asked Questions (FAQ)
🚀 Get started now: Know your nutrient levels
You now understand how important the right nutrient intake is. The next step is simple: Test your 16 most important nutrients with the VitalCheck Complete or Longevity Test.
What you can expect afterward: Clarity, concrete recommendations for action, and a sense of control over your health.
Free shipping on orders over €49 | Results in 15–25 business days | Personal consultation available