Photosynthetic photon flux density (ppfd) in suboptimal or super-optimal levels can modify the biomass accumulation, bromatological composition and appearance of crops. This study was conducted in a hydroponic system to determine whether ppfd could change physiological and bromatological aspects of escarole (cichorium endivia l. var. latifolia). Three ppfd levels (100 percent, 70 percent and 50 percent of ppfd) were investigated to determine crops responses to this factor. Plants of escarole grown under 50 percent of incident ppfd had converted 0.88g of dry matter per mol of incident photosynthetically active radiation (42 percent more efficient compared to unshaded environment), had 26 percent more lipid content, higher levels of chlorophyll a, b and total (12 percent, 14 percent and 13 percent, respectively), 42 percent less acid detergent fiber, 34 percent less cellulose, 47 percent less lignin, lesser leaf thickness and better visual features. The attenuation of ppfd in sites or seasons where there is high light intensity is an effective method to improve morphological, bromatological and visual characteristics of escarole.