If you just drink some corn juice in moderation, it generally does not lead to obesity, but if you often drink a lot of it, and which also added sugar, it is possible to get fat.
Corn is a kind of coarse grain, the calories are not very high, will be squeezed into the corn after the calories will be relatively low, and corn juice and a lot of water, intake of most of the water, calories are relatively small, so if only a moderate amount of pure corn juice, usually does not lead to obesity.
But if you often drink too much corn juice, and which added too much sugar, calories will also increase, this situation may lead to fat.
If you need to control weight, usually no matter what you eat need to control the amount, to avoid excessive intake, but also more physical exercise, so that the intake of calories is less than the consumption of calories. But be sure to pay attention to a balanced diet and nutrition, do not favor picky eating, so as not to affect the health of the body.