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Nutrition et santé mentale

Serotonin

Intestinally produced neurotransmitter regulating mood, sleep, and overall well-being.

Definition

Neurotransmitter synthesized mainly in the gut from tryptophan. It regulates mood, sleep, appetite, and many physiological processes.

How it works

Often called 'hormone of happiness', serotonin is primarily a neurotransmitter. Approximately 90% of bodily serotonin is produced in the gut by bacteria and epithelial cells. Its synthesis depends on tryptophan availability, adequate light, and physical activity. Low levels are associated with depression, anxiety, and sleep disorders. Nutrition, sunlight, and exercise are powerful nutritional levers for optimizing serotonin.

Role

Regulates mood, sleep, appetite, digestion, and overall sense of well-being.

Examples

  • Egg-rich tryptophan
  • Dairy and dairy products
  • Nuts and seeds
  • Sunlight exposure
  • Regular exercise

Recommendations

Consume tryptophan-rich foods like eggs, chicken, and almonds. Expose yourself to at least 20 minutes of natural light daily to optimize its synthesis. Engage in regular physical activity significantly increasing serotonin levels.

Key takeaway

Optimizing intestinal serotonin through nutrition and light is a powerful preventive strategy against depression.

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