Table 1.

Different phytochemical additives against coccidiosis in poultry.

Phytochemical	Effect on gut health and immune response
Areca Nut (Areca Catechu L.)	Reduced caecal lesion scores. Enhanced immunity through the production of interleukin 2 (IL-2) [83]
Bidens Pilosa	Disrupted life cycle of E. tenella [12, 91] Enhanced T-cell mediated immunity [14, 92]
Carvacrol	Increased growth performance and intestinal barrier function [20 ltered gut physiology Interference with the life cycle of E. tenella by destroying sporozoite membrane [42]
Curcumin	Maintenance of gut integrity [88] Interference with life cycle by inhibiting E. tenella sporozoites [11]
Cinnamaldehyde	Improved chicken growth performance and altered caecal microbiota composition [90]
Garlic (Allium Sativum)	Increased resistance to experimental Eimeria acervulina infection [62, 71] Induced alterations in broiler intestinal microbiota