Will bouncing on a excises trampoline help me loose weight?

will 30 minuets of bouncing on an excises trampoline a days help me to loose weight and tone up plus drinking at least 2 liters of water a day and having bran flakes with no Sugar and the lowest fat milk every morning and then at around 1pm i have more bran flakes and then around 5 i have a healthy but small meal and then a healthy snack like a peace of fruit at around 6pm and then nothing after that just water will that help me loose weight and is that to much to eat? thanks.