i will save the world by eating is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

A 300-pound fat man suddenly gets a golden finger from the heavens and thinks he can change his life. In the end, because of this unfortunate golden finger, he has to rely on crazy meals every day to stay alive. Even if that’s not enough, he also discovered that this golden finger made him the queen of the alien insect race. Even if it’s a bug race why is it a queen! Do I really have to obey the system? Destroy the Earth?