Interesting topic that I happen to know a little about! Gives us something else to think about whilst waiting for the eventual grandeur that WILL happen. PANTENE!
Read on only if you are interested to learn something that may improve your physical health and well-being.
Comparing fruit juice to Scotch was an inappropriate choice to get the low-carb point across. Scotch (as with most straight spirits) has zero carbs, but it does have calories. I had never heard of its back-pain alleviating qualities, but I'm willing to give it a try.
Maybe a better example would have been:
fruit juice is worse than coke or other forms of pop drink. Or
fruit juice is worse than directly eating spoons full of sugar. And it IS!
The main concern about fruit is that fructose is the enemy. Fructose can only be metabolized in the liver where it promotes the synthesis of fat. And a lot of that fat is stored in the liver which degrades the organ. Excess fat in the liver can lead to fatty liver disease and even cirrhosis of the liver.
Eating whole fruit is much better than fruit juice, the fibre in fruit makes it lower GI and hence not as bad as the fructose is absorbed into the body slower, but overall fructose still ONLY gets metabolized in the liver and places strain on that extremely important organ. Juicing fruit turns it into concentrated fructose and removes the most beneficial part—the fibre. And based purely on nutritional value, you're better off eating most fruit skins rather than the pulp inside.
As an aside, normal white sugar is 50% glucose and 50% fructose. Consuming something that is 100% fructose is worse than eating sugar by itself. Hence my spoons full of sugar comment above.
We have been fed a big porker of a lie by having the food pyramid shoved down our throats.
We have always been told fruit and grains are good for us. They are OK in moderation, but modern agriculture techniques have made them abundantly available all year round, and now they are consumed in excess. That's the crux of the problem and the reason for the obesity pandemic. Dietary fat, derived from animal sources, olive oil and avocado, is NOT the enemy! With the exception of olive oil and some nut oils, ALL other vegetable oils are also the enemy. And butter IS better than margarine!
The food pyramid is wrong and mainly exists to get us to eat stuff that was over abundant and couldn't be given to our cattle because it made them fat! The food pyramid was introduced to demonize all dietary fats, this was based on nonsense which has since been dis-proven. They introduced the Food Pyramid in 1977, in an attempt to stave off a false statistic of increasing heart disease, that they thought was the result of too much fat in the diet. And that is when the obesity epidemic started.
Look at photos of the general population from before 1977. It is difficult to spot a fat person in them.
The US stopped promoting the food pyramid in 2005 and dietary advice is now based on MyPlate, and moderation.