Colourful fruits like blueberries, grapes, and oranges are rich in polyphenols and vitamin C, while vegetables such as spinach and kale provide carotenoids that support cellular protection. Fatty fish like salmon supply omega-3s that help calm inflammation, and spices such as turmeric and ginger contain bioactive compounds that protect cells from oxidative stress. Incorporating these foods into daily meals helps reinforce the body’s natural defence systems even before supplements are added.