Diet significantly affects mood and mental health due to the link between nutrition and neurotransmitter levels. Consuming a diet rich in whole foods, including fruits, vegetables, whole grains, and lean proteins, supports brain health and emotional balance. Certain nutrients, like omega-3 fatty acids and B vitamins, are particularly beneficial for reducing symptoms of depression and anxiety. Conversely, a diet high in processed foods and sugars can contribute to mood swings and cognitive decline. Eating nutrient-dense foods can foster stable energy levels and improved mental well-being.