1) I usually watch what I eat in order to stay healthy.

2) I usually keep a watchful eye on what I eat in order to stay healthy.

Which one is more natural between 1) and 2)?

Question

1) I usually watch what I eat in order to stay healthy.

2) I usually keep a watchful eye on what I eat in order to stay healthy.

Which one is more natural between 1) and 2)?

Answer

As a native speaker of English, I would have to say number 1. If you said number two, not to say number two is grammatically incorrect, but, if you said it to someone, they would give you a strange face.