An expression meaning 'after all' or 'no matter what people say'; used to emphasize a point or state a conclusion.
なんて言っても彼がチームのエースだ。
After all, he's the team's ace.
なんて言っても、健康が一番大事だ。
No matter what people say, health is the most important thing.
なんて言っても、この店の味は変わらない。
No matter what anyone says, this shop's flavor doesn't change.