We prove a Tits alternative theorem for subgroups of finitely generated even
Artin groups of FC type (EAFC groups), stating that there exists a finite index
subgroup such that every subgroup of it is either finitely generated abelian,
or maps onto a non-abelian free group. Parabolic subgroups play a key role, and
we show that parabolic subgroups of EAFC groups are closed under taking roots