Translation of "Mouthful" in Japanese

I couldn't eat another mouthful.

もう十分いただきました。

It's a bit of a mouthful.

ちょっと言いにくいですね

A giant squirrel swallows dozens of tiny fig seeds with every mouthful.

‎ムササビが果実と一緒に ‎大量の種子を飲み込んだ

Cough syrup. If I don't drink a mouthful before going on stage I can't settle down!

咳止めシロップ。本番前に一口飲まないと落ち着かない！