do p90x workout

If I do the P90X exercise routine and eat normally, I see improvements?
I'm not saying that eating pizza and junk food all day .. Most of the time eat healthy bread, humus and pita for lunch. grapefruit or cereal for breakfast, burger dinner chicken, turkey, fish .. etc. .. But the court occasional pizza, cookies, chips …..
No Doubt. or obtain adequate ASAP. Something should be done.
P90X shoulders & arms – how do I up it?