Juice may taste good, but unlike the fruit, it’s not healthy
I don't have proof for the following, but I think the article should qualify the type of juice being consumed.  I regularly make juice from raw vegetables (ginger, cucumber, carrots, beets, celery, parsley, cilantro, yams, kale, chard, brussel sprouts etc) and I suspect that the sugar content is less than fruit juice.  Personally I don't understand why a person would juice a fruit when you can eat it whole?  Fruits are so stupidly delicious when eaten whole.  In the end, everything in moderation...