Flavonoids are natural compounds found in many plants, fruits, vegetables, tea, and wine. They have powerful antioxidant and anti-inflammatory properties, which help protect cells from damage, reduce the risk of diseases, and support a healthy immune system. Flavonoids can also improve blood flow, boost brain function, and keep the body in balance. Eating foods rich in flavonoids, like berries, apples, leafy greens, and tea, is good for overall health and may help prevent chronic health problems.