What we eat can impact our mood, memory, and mental wellness. Our brains are filled with a variety of chemicals, hormones, and receptors that all react to the food we eat. In fact, serotonin is actually produced in our guts, and is directly impacted by what we eat. For example, the grumpiness we feel when we are very hungry can be combated by eating foods high in protein and fibre to keep us feeling full. Omega-3s and other brain-boosting amino acids can help with depression and improve mental wellness, while B vitamins can help us feel more energized.