I think if you eat only 4 cucumbers a day is going to lose weight, but the body is not able to eat, no nutrition, not to replenish energy. If it is every day in the meal leisure time to eat cucumber I think the effect is not very big.

I suggest you reasonable weight loss, to combine the actual, breakfast must eat, lunch appropriate to eat some, dinner can be used cucumber, in addition, but also more exercise, control the amount of meals, all have the effect of weight loss, a cup of salt water in the morning, have a good metabolism on weight loss is also helpful. If you are in adolescence, do not blindly lose weight will not be high