Which naturally occurring substances found in plant foods can prevent chronic diseases? question 21 options: ?

A phytochemical is a naturally occurring substance found in plant foods that may help prevent and treat chronic illnesses or diseases like cancer and heart disease. Some of these give plants their pretty colors, like the blue in blue berries and the red in raspberries and other phytochemicals give plants their distinctive aroma. They offer many benefits to human health when consumed such as offering protection to many chronic diseases such as diabetes, cancer, heart diseases among others. 

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