Celery is a rich source of phenolic phytonutrients that have antioxidant and anti-inflammatory properties. These phytonutrients include: caffeic acid, caffeoylquinic acid, cinnamic acid, coumaric acid, ferulic acid, apigenin, luteolin, quercetin, kaempferol, lunularin, beta-sitosterol and furanocoumarins.