1. Algae: Algae such as spirulina and chlorella are rich in omega-3 fatty acids, which have been shown to have anti-inflammatory and anti-anxiety effects.

2. Nuts and seeds: Nuts and seeds such as flaxseeds, chia seeds, and walnuts are rich in omega-3 fatty acids and magnesium, which can help to reduce symptoms of anxiety and depression.

3. Berries: Berries such as blueberries, strawberries, and raspberries are high in antioxidants and may help to reduce inflammation and improve brain function.

4. Legumes: Legumes such as lentils, chickpeas, and beans are high in folate, which can help to reduce symptoms of anxiety and depression.

5. Dark leafy greens: Dark leafy greens such as spinach, kale, and broccoli are high in folate and magnesium, which can help to reduce symptoms of anxiety and depression.

6. Herbs and spices: Herbs such as ashwagandha, chamomile, lavender, and turmeric can help to reduce stress and anxiety by modulating the activity of neurotransmitters.

7. Fermented foods: Fermented foods such as tempeh, miso, and sauerkraut, are rich in probiotics which help to keep the gut healthy and improve the communication between gut and brain.

It is important to note that these foods should be part of a balanced diet and not a replacement for proper medical treatment if needed. It is also important to consult with a doctor or registered dietitian before making any changes to your diet.