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Synthesized in plants, polyphenols are powerful antioxidants and protect against stressful conditions. We aimed to identify different kinds of phytochemicals in fruits and provide detailed information on the roles they play in promoting good health in the human body. We also discussed the biological activities of phytochemicals found in several fruits. Google Scholar and PubMed databases were used to search for relevant information that could assist in answering our research questions. We selected and reviewed both research and review articles related to the purpose of our study. Fruits contain numerous antioxidants which neutralize the negative impact of free radicals on the body. Free radicals are destructive species that can be produced during normal body metabolism or come from exogenous sources such as smoking or exposure to radiation. Due to their unstable nature, they can cause damage to cellular macromolecules, resulting in the development of degenerative diseases. Phytochemicals are diverse groups of bioactive compounds found in fruits that have potent antioxidant activity and exhibit several health-promoting properties in both in vivo and in vitro studies. There are two major groups of antioxidants: natural (or dietary) antioxidants and synthetic antioxidants. Natural antioxidants have gained much popularity in recent times because of the safety concerns surrounding the use of synthetic antioxidants. The consumption of fruits plays a critical role in disease prevention, especially diseases resulting from oxidative damage to cells. The inclusion of fruits in one’s daily diet helps improve their overall wellbeing.
Danyo et al. (Tue,) studied this question.