phytochemical

Phytochemicals are plant or fruit derived chemical compounds. "Phytonutrients" refer to phytochemicals or compounds that come from edible plants.
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Phy·to·chem·i·cal n. A nonnutritive bioactive plant substance, such as a flavonoid or carotenoid, considered to have a beneficial effect on human [more]Phytochemical - Community and Resources

(a.)
Relating to phytochemistry.
  

[FY-toh-KEH-mih-kuhl]
A substance found in plants. Some phytochemicals may reduce the risk of cancer.

Any of a group of diverse compounds whose common denominator is that plants produce them. The prefix “phyto-” means “plant,” and, technically, “phytochemical” means “a chemical produced by a plant.” But the word usually denotes only certain plant constituents-plant compounds termed “bioactive non-nutrients”-that researchers regard as useful or possibly useful in preventing and treating disease. Moreover, sometimes the word denotes only those plant chemicals that (a) are constituents of fruits and vegetables and (b) may be useful in preventing cancer (in which case the phytochemicals are sometimes termed “chemopreventive agents”).