Micronutrients
Micronutrients include vitamins, minerals and trace elements that the body needs in small quantities to maintain vital functions. Unlike macronutrients, they do not provide energy, but are involved in almost all metabolic processes. A persistent deficiency can affect physical health, mood, concentration and the immune system.
What are micronutrients?
The term “micronutrients” encompasses all vitamins, minerals, and trace elements that the body needs for its biological processes—but cannot produce in sufficient quantities on its own. They must therefore be regularly obtained through food. “Micro” does not mean unimportant; rather, it simply refers to the amount required compared to macronutrients such as carbohydrates, proteins, and fats.
Key Categories
- Vitamins: Fat-soluble (A, D, E, K) and water-soluble (B complex, C) vitamins perform functions ranging from immune defense to energy production.
- Minerals: Calcium, magnesium, potassium, and sodium are essential for bone health, muscle contraction, and nerve function, among other things.
- Trace elements: Iron, zinc, iodine, and selenium are needed in very small amounts but are essential for thyroid function, the immune system, and cell division.
Micronutrients and Mental Well-being
The link between micronutrients and mental health is well-documented. Magnesium and B vitamins play a key role in stress management and nervous system regulation. Iron influences oxygen supply to the brain, vitamin D is associated with mood regulation, and zinc is involved in the synthesis of neurotransmitters. These connections are explored in detail in the article “Nutrients for Inner Restlessness.”
A varied, plant-based diet is, in most cases, the best foundation for adequate micronutrient intake. Dietary supplements can be beneficial, but should be used selectively and only after consulting a doctor.
How do I recognize a micronutrient deficiency?
Symptoms of a deficiency are varied and often unspecific: persistent tiredness, concentration problems, mood swings, hair loss or frequent infections can be indications. A blood test by a doctor provides reliable information about the actual status.
Can micronutrients be overdosed?
Yes - in particular fat-soluble vitamins such as A and D as well as certain minerals can be present in toxic concentrations with long-term high supplementation. Water-soluble vitamins are usually excreted via the kidneys, but upper limits must also be observed here.