Ranieri said: “The player decided to stay in Italy, after evaluating the fact he would have needed to get used to a new league.”
The Foxes held talks with Eder in January, as they looked to add a new striker to their title challenging squad. They were linked with a host of forwards, but Eder was the only player to become a realistic potential signing.
However, he opted against leaving Italy, leaving Sampdoria on loan to join Internazionale instead.
This move means he has stayed in Serie A, with plans to get into the Italy squad ahead of the European Championship this summer.
The 29-year-old has played eight times for Italy, and he had scored 12 goals for Samp prior to leaving.
In his three games as an Inter player, he has yet to score a goal, as they have dropped off the title race slightly.
Leicester ended the January window without able to bring in a new forward, but it does not look like it is having an impact, as Ranieri’s men defeated Manchester City 3-1 on Saturday.