Answer: Orange juice naturally contains a lot of citric acid. If you ingest too much in a short amount of time, the rapid influx of citric can imbalance the hydrocholoric acid produced by your stomach and you may throw up. trhbfvZXsazx
Answer: Anything that has sugar in it, whether it be natural sugars or artificial sugars can be fattening. Assuming you do not burn up the sugar after it is turned into ATP, it will eventually change forms and turn into fat. Besides, everything had some fat content in it. All you need to do to counteract this is to exercise often and eat well (foods without a lot of ADDED SUGARS, natural sugars are really good for you in fact).
Answer: Very simply because most toothpastes have "breath freshening" agents which tend to stick to your teeth and gums, and the cold and acidity of the orange juice reacts with menthol that tends to be in these breath freshening agents.