We live in an age where constant tension and an overburdened nervous system are almost the social norm. Chronic stress and that unpleasant, creeping anxiety have long since ceased to be merely abstract psychological concepts. They manifest as a knot in the stomach, an endless stream of thoughts before bedtime, and a feeling of exhaustion that cannot simply be shaken off with a good night’s sleep. As if that weren’t enough, stomach problems can also be counted amongst the unpleasant symptoms. Although sleep, exercise and lifestyle adjustments remain the foundation of mental balance, during prolonged periods of nervous tension our body burns through key micronutrients whilst crying out for help.

However, it’s easy to get lost in the endless flood of advice and marketing promises. You don’t need to resort to random products with dubious ingredients. We’ve looked at what the actual scientific evidence says and selected 5 proven dietary supplements that can physiologically support the nervous system, reduce stress hormone levels and restore a sense of inner calm.
1. Magnesium (mainly in the form of bisglycinate or threonate)
Magnesium helps to regulate neurotransmitters whose role is to calm the brain. It prevents the excessive release of the stress hormone cortisol. The bisglycinate form is ideal for general relaxation and sleep, whilst L-threonate effectively crosses the blood-brain barrier directly into the brain.
2. Ashwagandha (Withania somnifera)
We rank it amongst the most extensively researched adaptogens. Thanks to it, our body is better able to cope with both mental and physical stress, as it has been shown to reduce serum cortisol levels. According to studies, standardised extracts (such as KSM-66 or Sensori) show a significant reduction in chronic anxiety.
3. L-theanine
This amino acid is found naturally in green tea. L-theanine promotes the production of alpha waves, which induces a state of alert calm without any feeling of numbness or drowsiness.
4. Omega-3 fatty acids (EPA and DHA)
They reduce both systemic and neurological inflammation, which is closely linked to the development of anxiety and depressive disorders. A higher ratio of EPA to DHA is particularly important for achieving an anxiolytic effect.

5. Lemon balm (Melissa officinalis)
It prevents the breakdown of gamma-aminobutyric acid (GABA) in the brain by inhibiting the enzyme GABA transaminase. Increased availability of GABA leads to rapid relief from nervous tension, reduced anxiety and improved sleep onset.
Dietary supplements are not a miracle pill that will wipe out all sources of stress from your life. They cannot eliminate demanding tasks at work, resolve complicated relationships or replace eight hours of good-quality sleep. However, they can act as a reliable biochemical safety net that will cushion the impact, protect your body from burnout and create the mental space needed for recovery.