Foles returned to practice Tuesday for the first time since sustaining a concussion in Philadelphia's 17-3 loss to Dallas on Oct. 20.
With Michael Vick sidelined by a hamstring injury, Foles will likely start for the Eagles (3-5) at Oakland (3-4) this week unless he has a setback in his recovery.
"I cleared everything and I feel good," Foles said. "I felt good out there today. It was a long week last week, but the most important thing was getting healthy. I had a lot of support, and I feel great. It was great to get back out there with the team and I feel like we had a good day today."
Foles had to pass the ImPACT concussion test and receive clearance from an independent neurologist before returning to the field. He was hurt in his second start filling in for Vick, who re-injured his left hamstring in the first half of a 15-7 loss to the New York Giants on Sunday.
"There were definitely symptoms, but I'm healthy now and that's the most important thing," Foles said. "It's very tough. There's a lot of adversity, but I've always had my family there.
"They were great with supporting me. A concussion is not something that you want to go through, but they were great to support me. My teammates were great and the coaching staff was too. A week later, I feel great and feel healthy. It was great being back out there and I'm excited to just keep going."
Matt Barkley finished off each of the past two games, and the rookie shared first-team snaps with Foles in practice.
Foles played well after replacing Vick late in the second quarter of a 36-21 win at the Giants on Oct. 6. He was the NFC Player of the Week for his performance in a 31-20 win at Tampa Bay the following week.
But Foles struggled against the Cowboys. He completed just 11 of 29 passes for 80 yards before getting hurt on the last play of the third quarter.
"He's had a chance to look through the game. We've gone through the details of the good, the bad and the ugly, and he's ready to move forward," offensive coordinator Pat Shurmur said.
"Some of those plays specifically we've talked about why. But then of course there are times when you just miss throws, and he missed more than his share."
The Eagles have lost two in a row and are one game behind the Cowboys (4-4) in the NFC East.