Berries: Berries like blueberries, strawberries, and raspberries, abundant in antioxidants, work to protect your skin from the destructive effects of free radicals, which can hasten the ageing process and weaken hair and nails. Berry antioxidants, especially vitamin C, encourage the creation of collagen, which is necessary for preserving skin elasticity and suppleness. Additionally, berries include nutrients like biotin, folate, and vitamin E that support healthy, shiny hair and strong nails. (Image Source: Getty)