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Seaweed

Overview

Seaweed provides iodine, EPA (in red algae), glycolipids, magnesium, and fiber, supporting thyroid function and brain health. Seaweed can be added to soups, stews, or salads and provides trace amounts of creatine (e.g., nori) and taurine.

Recipes

no recipes found

Substances

2 substances in this food

Iodine

Thyroid hormone synthesis; neurodevelopment; neurotransmitter regulation

Magnesium

Enzymatic cofactor (>300 reactions); neurotransmitters; mitochondria; redox balance

Preparation Notes

  • Can be added to soups, stews, or salads
  • Important for iodine intake (especially for plant-based diets)
  • Part of diverse plant food strategy
  • Low bioavailable EPA; consider algal oil for direct DHA

Biological Target Matrix

Biological TargetSubstanceContribution LevelTherapeutic AreasMechanism of Action
Gut–Brain Axis & Enteric Nervous System (ENS)Omega-3 Fatty AcidsContextual / minor contributor
Inflammation & Oxidative StressOmega-3 Fatty AcidsContextual / minor contributorSpecialized Pro-Resolving Mediators (SPMs) - resolvins, protectins, maresins terminate inflammation without immunosuppression, downregulate COX-2, inhibit neutrophil infiltration, enhance macrophage clearance, limit glutamate-induced excitotoxicity. Production of DHEA and EPEA (N-acyl ethanolamines) feeds into CB2-related anti-inflammatory signalling; ECS lipid mediators regulate immune tone and microglial activation (primary anchor for ECS mechanism: Inflammation & Oxidative Stress).
Metabolic & Neuroendocrine Stress (HPA Axis & ANS)MagnesiumContextual / minor contributorHelps manage stress responses; combined with vitamin D reduced behavioral problems; synergy with zinc and omega-3s reported
Metabolic & Neuroendocrine Stress (HPA Axis & ANS)Omega-3 Fatty AcidsContextual / minor contributorImprove vagal tone and HRV control, improve cortisol rhythms
Methylation & One-Carbon MetabolismOmega-3 Fatty AcidsContextual / minor contributorSupport homocysteine reduction in combination with B12, phospholipid methylation (PLM) dependent on SAMe
Mitochondrial Function & BioenergeticsMagnesiumContextual / minor contributorSupports enzymes involved in glycolysis and the Krebs cycle (processes that generate ATP from glucose); binds to ATP and all triphosphates in cells to activate them
Mitochondrial Function & BioenergeticsOmega-3 Fatty AcidsContextual / minor contributorECS-related lipid signalling may influence mitochondrial coupling/efficiency (context-dependent; largely preclinical). Omega-3 incorporation changes membrane fluidity (secondary anchor for ECS mechanism: Mitochondrial Function & Bioenergetics).
Neurotransmitter RegulationIodineContextual / minor contributorThyroid hormones regulate synthesis and regulation of key neurotransmitters (dopamine and serotonin), supporting cognitive function and development
Neurotransmitter RegulationMagnesiumContextual / minor contributorBroad cofactor for neurotransmitter synthesis and receptor modulation (e.g., NMDA, GABA); functions as an NMDA receptor antagonist and GABA receptor modulator; assists enzymes involved in synthesis of dopamine and serotonin
Neurotransmitter RegulationOmega-3 Fatty AcidsContextual / minor contributorMembrane fluidity and neurotransmitter receptor function, ion channel behavior and gamma oscillations, support neurotransmission and phospholipid methylation

References

  • Seaweed (Whole): Glycolipids, EPA (in red algae), iodine, magnesium, fibre - Added to soups, stews, or salads
  • EPA & DHA (Omega-3): Algal oil (direct DHA), seaweed (low bioavailable DHA/EPA)
  • Creatine: Minimal — trace amounts in seaweed (e.g., nori)
  • Taurine: Minimal in plants; trace in seaweed/algae