Eat well, be well

I'm not a vegetarian, although I do eat vegetables such as lettuce, carrots, tomatoes, cauliflower, onions, spinach and pumpkins. I hate the cucumber so I would not sue to Germany. By the way E-coli has been found in Spanish cucumbers. Many proteins and vitamins are simply not encountered  found in vegetables. For this reason I'm not a vegetarian. I want to provide good chemical energy to my body (I want to provide my body with good chemical energy) in order to have good performance whilst *(while) I work and study English. I think we should eat well-balanced food (meals) including meat, fish, chicken, cereals, legumes and dairy products. We should do it properly in adequate quantities and at the appropriate time. You can  (should) also drink some water during the day and, of course, do exercise regularly.

* whilst is a perfectly good word and used appropriately here, but, I think, rather old-fashioned and not used very often in modern English.

Bravo Luis - as usual!

I'm not a vegetarian, although, I eat vegetables such as lettuce, carrots, tomato, cauliflower, onion, spinach and pumpkins. I hate the cucumber so I would not sue to Germany and by the way Ecoli has been found in Spanish cucumbers, too.

Many proteins and vitamins are not found in vegetables. For this reason I'm not vegetarian. I want to provide good chemical energy to my body in order to have good performance while I work and study English.  I think we should eat well-balanced food including meat, fish, chicken, cereals, legumes and dairy products.  We should do it properly in adequate quantities and at the appropriate time.  You can also drink some water during the day and, of course, do exercise regularly. 

Well done.