http://news.bbc.co.uk/1/hi/world/africa/7200101.stm
He said the sacrifices "included the killing of an innocent child and plucking out the heart, which was divided into pieces for us to eat."
Mr Blahyi, 37, is better known in Liberia as "General Butt Naked" because he went into combat with no clothes on, to scare the enemy.
He is now often seen preaching on street corners and churches in the capital, Monrovia.
"I now preach against murder and making human sacrifices," he said.
"Some people see me and congratulate me.
"Others see me and say I should not be walking down the streets of Monrovia posing proud. But I continue to tell such people I am not proud, I am ashamed."