In Plain English: The Clinical Takeaway
- The Gut-Brain Axis: According to Tua Saúde, more than half of the body’s serotonin—a hormone responsible for good humor—is produced and stored by good bacteria in the intestine.
The Biological Mechanism: How the Gut and Diet Shape Mood
Depression is a disease of the nervous system characterized mainly by loss of energy and constant fatigue. While treatment involves monitoring by a psychiatrist and psychologist, nutrition also contributes to a person feeling better and more animated. According to Tua Saúde, consuming foods rich in specific nutrients helps increase circulating levels of serotonin in the blood.
Beneficial microbes residing in the digestive tract help prevent depression and improve mood. Probiotic-rich foods like natural yogurt and kefir help maintain a balanced microbiome. These beneficial microbes feed mainly on fibers found in whole grains, oats, and flaxseed, whereas bad bacteria consume more sugar and white flour.
Essential Nutritional Components for Mental Health
Tryptophan is found in meat, fish, seafood, eggs, nuts, peanuts, peas, cauliflower, banana, chickpeas, avocado, oats, and dark chocolate. Omega-3 is also found in these sources.
Furthermore, magnesium—abundant in chocolate, nuts, almonds, pumpkin seeds, brown rice, wheat germ, oats, avocado, and banana—plays a role in mood. Vitamins of the complex B family, sourced from spinach, kale, milk and derivatives, liver, chicken, plum, and watermelon, also contribute. Tua Saúde emphasizes that these foods should be consumed daily in all meals.
| Nutrient | Primary Mechanism | Common Dietary Sources |
|---|---|---|
| Tryptophan | Precursor for serotonin synthesis. | Eggs, fish, bananas, oats, dark chocolate. |
| Omega-3 Fatty Acids | Supports well-being and mood. | Fish, seafood, flaxseeds. |
| Magnesium | Supports well-being and mood. | Pumpkin seeds, almonds, brown rice, avocado. |
| B-Complex Vitamins | Supports well-being and mood. | Spinach, kale, chicken, liver, milk. |
Contraindications & When to Consult a Doctor
Treatment for depression must be done according to the guidance of a psychologist or psychiatrist, and in some cases, the use of medications may be necessary. It is also important for the person to talk and go out with friends and family, avoid hiding problems, and practice regular physical activity.
The Future of Nutritional Integration in Psychiatry
An evidence-based approach to nutrition, including a diet rich in tryptophan and the maintenance of a healthy intestinal flora, offers patients a way to help control depression and anxiety.
References
- Tua Saúde. Alimentos para melhorar a depressão e o humor.
