Correction de texte

Sujet du devoir

Pouvez vous me dire si mon texte est correcte svp

First, we’d like to say a healthy food because it's better for our body and so it keeps you healthy, you can tell what you're eating(where does that come from, for example)and compared to fast food, healthy food has a good impact on the environment.but healthy food is generally more expensive than fast food.

Merci d'avance 

Cordialement