Will I gain weight from the bowl of Cheerios I ate?

I only ate the serving size and it was just the regular cheerios. I have been losing weight but i think that is by how I've been keeping my diet all protein and healthy fats. this was the most carbs I've had in a week (20g)
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+1 y
i woke up feeling very faint because i didn't eat much yesterday so i had to get something like this in me when i came down for breakfast instead of egg whites
Will I gain weight from the bowl of Cheerios I ate?
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