Omega-3 Fatty Acids: Key to Immunometabolism and Health?

Omega-3 fatty acids, found in fatty fish, flaxseed, or walnuts, have been a focus of nutritional research for years. An editorial in Frontiers in Nutrition by Nunes, Yamazaki, and de Brito (2023) underscores their role in immunometabolism – the interaction between the immune system and energy metabolism. But what does this specifically mean for our health, and how does it fit into Jürg Hösli's psychophysiological interaction model?

The Role of Omega-3 in Immunometabolism

The authors of the editorial emphasize that omega-3 fatty acids possess anti-inflammatory properties. They influence the production of so-called eicosanoids – signaling molecules that regulate inflammatory responses. An imbalance in immunometabolism, often exacerbated by chronic stress or an unbalanced diet, can lead to conditions such as cardiovascular problems, diabetes, or autoimmune diseases. Omega-3 could act as a regulator here:

• Reduction of chronic inflammation: Supports the balance between pro- and anti-inflammatory processes.
• Metabolic support: Promotes mitochondrial function, i.e., energy production in cells.
• Immune modulation: Strengthens defenses without overstimulating the immune system.

Connection to the Psychophysiological Interaction Model

In the context of Jürg Hösli's approach, it becomes clear how closely the psyche, body, and nutrition are linked. Chronic stress activates the cortisol axis and the sympathetic nervous system (part of the autonomic nervous system), which promotes inflammation and metabolic bottlenecks. Omega-3 fatty acids can act as a nutrition-based intervention here: They support parasympathetic activity (rest and regeneration) and dampen the stress-induced inflammatory response. This aligns with the core theme of vegetative balance, which can be measured via heart rate variability (HRV). A diet rich in omega-3 could therefore strengthen not only the body but also psychological resilience.

Practical Relevance: What Does This Mean for Everyday Life?

The study results are not a panacea, but they offer clear approaches for daily nutrition:

• Food choices: Regularly integrate omega-3-rich foods such as salmon, mackerel, chia seeds, or walnuts into your diet (2-3 servings of fish per week).
• Individualization: Not everyone benefits equally from omega-3. People with high stress levels or inflammatory diseases might see greater effects. An analysis of one's own HRV or stress level can help assess the need.
• Supplements with caution: If diet is insufficient, high-quality omega-3 supplements can be beneficial – ideally in consultation with a specialist.
• Stress management: Combine nutrition with relaxation techniques to promote parasympathetic activity.