Two first-half goals from former Anfield forward Milan Baros and a stunning volley from Johan Elmander condemned the Reds to defeat in Istanbul.
But while unhappy with the result, Dalglish feels the workout his players were given at the Turk Telekom Arena will assist in ensuring their primed for the start of the Barclays Premier League season next month.
He told a post-match press conference: "I think they looked a bit sharper than us at the start of the game. It was the same as at the weekend in that we played a lot better in the second half than we did in the first half.
"But the players worked hard and they'll benefit from the effort they put in. It won't do us any harm for the season ahead, but we've got to get ourselves a bit sharper, a bit more clued up and lively when we're not in possession of the ball."
He added: "I think the benefit is it's another game. They looked a bit sharper than us and are maybe a wee bit ahead of us. Their season was due to start but I think it's been put back for a number of days."