Author: Dan Katz

Each of the pentagrams is a poker hand where A is the ace and the
cards go down to Z.

Arrange the hands in order:
Four of a Kind
Full House
Straight (an alphabetical set of 5 consecutive letters)
Three of a Kind
Two Pairs
One Pair

DDODD
IKIII
EPPPP
TTTTP
NAANA
ODODD
NMNMN
ONNOO
FEBDC
OLPNM
RUQTS
JAPAA
ACCHC
CODDD
KRRRT
SBBTS
PEPEG
RGGRE
ANMNM
TTOPP
SAKTA
PEBNB
OCKMC
UWCXC
SDFHD
EHEFI

Reading down the first "letter" of each hand spells "Diet no-no for
Jack Sprat spouse".  Jack Sprat could eat no fat, his wife could eat
no LEAN.  So, LEAN is the answer.