Smart Check-up

Micronutrient and vitality panel combining a complete blood count with the most commonly deficient vitamins and minerals in Central European adults: ferritin, vitamin D, vitamin B12, magnesium, calcium, and zinc.

The Smart Check-up targets the micronutrient deficiencies most prevalent at northern European latitudes and in modern dietary patterns. Rather than testing organ function or metabolic disease markers, this panel focuses on the building blocks that underpin energy production, immune function, bone health, and neurological performance. Ferritin is the primary storage form of iron and the most sensitive marker for iron depletion. Iron deficiency is the most common nutritional deficiency worldwide, affecting an estimated 20-30% of European women of reproductive age. Symptoms include fatigue, reduced exercise tolerance, cognitive impairment, and hair loss — often present well before frank anaemia develops. Ferritin below 30 ng/mL warrants investigation even when haemoglobin is normal. Vitamin D status is especially relevant at Leipzig's latitude of 51 degrees north, where effective cutaneous synthesis occurs only from approximately April through September. An estimated 60-80% of Central European adults have suboptimal levels during winter months. Beyond its well-known role in calcium absorption and bone mineralisation, vitamin D influences immune regulation, muscle function, and mood. Vitamin B12 is critical for DNA synthesis, red blood cell formation, and myelin maintenance. Deficiency risk is highest in vegetarians, vegans, older adults, and users of proton pump inhibitors or metformin. Neurological damage from B12 deficiency can be irreversible if not caught early. Magnesium supports over 300 enzymatic reactions including ATP production, muscle function, and cardiac rhythm. Subclinical deficiency is common and often missed because serum magnesium represents only 1% of total body stores. Calcium and zinc round out the mineral panel — calcium for bone and cardiovascular health, zinc for immune function, wound healing, and taste perception. The complete blood count provides context for interpreting the micronutrient results, particularly for distinguishing iron-deficiency anaemia from B12/folate-related macrocytic anaemia.