All are meat, nothing more.
You gain a bite attack that deals 1d6 damage if you are medium size. This is a primary attack. You can also gain the following abilities:
Paralyzing Touch: Your touch can infect an enemy with a lesser form of Ghoul's paralysis. The target must make a Fortitude save DC 10+1/2 Cleric Level+Wis modifier or be dazed for 1 round. You can use this ability a number of times per day equal to 3+Wis modifier.
Ghoul Fever: Your bite gains the ability to infect creatures with Ghoul Fever. The onset is instant and the save DC is 10+1/2 Cleric level+Wis modifier. A humanoid that dies from the disease rises as a Ghoul at midnight the following night. The Ghoul is under your control. You can control a number of HD of Ghouls equal to x2 your Cleric level. Any Ghouls your bite creates beyond your limit are free willed.
1st-Ghoul Touch, 2nd- Ghoul Hunger, 3rd-Contagion, 4th-Ghoul Army, 5th-Slay Living, 6th-Plague Storm(Infects creatures with Ghoul Fever), 7th-Eyes of the King, 8th-Bite of the King, 9th- Cursed Earth(if you choose the Living Death option, creatures rise as Dread Ghouls under your control. They count against your ghoul fever limit)