Fruit smoothie help?

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i made this smoothie and i wanna know if you drink it alot will it make you gain weight? i was thinking of drinking maybe 4 glasses a day. 1-can of tropical fruit 4-strawberries 1-whole apple 1-whole banana 3 1/2 teaps of powder sugar 2-drops of watermelon gateraid 4-cubes of ice i'm trying to watch my calories and loose weight.thats why i'm asking this question.thank you all.