
Last week on The Fitcast, the  gang and I discussed fruit juice and how it’s gotten a bad rap as of  late.  First off, let me just say that there are far worse things that  people could be drinking:  soda, beer, battery acid, etc.  At the very  least, fruit juice will provide vitamins and minerals, along with some  fiber (depending on the type and how processed it is).  I’ve always been  a “realist,” and never really had any issues with people drinking fruit  juice (within reason).  I mean if someone is 30 lbs overweight, the  last thing they should be worried about is their morning glass of OJ.   Or should they?  Notice the blatant foreshadowing there?  You’re totally  going to keep reading. 
Needless to say, I was catching up on some reading the other day and  came across a really cool review by Lyle McDonald discussing how humans  show poor compensation for fluid calories.
 
As McDonald points out:  
 Compensation means that the body will adjust caloric  intake at other times of the day (or days later) for a given caloric  load.  So say you eat a bunch of candy earlier in the day and it  provides 450 calories.  What you might see is that, later in the day,  folks eat a few hundred calories less than they’d normally eat.  The  body ‘compensates’ for the food you ate earlier.  The problem is that  most liquid calories aren’t compensated that well and figuring out why  is of some interest to researchers.
  Furthermore, of interest to me (and something that I didn’t bring up  last week during the show), is the fact that various lines of research  indicate that the intake of calorically sweetened beverages (fruit  juice, soda, etc) do NOT reduce the intake of solid food.  In other  words:  people drink their calorie containing beverages (typically  loaded with sugar), and because there is no “compensation,” will  generally still stuff their pie holes later on in the day in the form of  real food.  Read:  fat people are fat.  Or something like that.  I  don’t know, I’m not a researcher.
  
And before some of you start going ballistic, please note that I’m  not saying indulging in a diet coke or some flavored water every now and  then is going to be detrimental in regards to one’s body composition.   However, I do feel the above brings up a few valid points.
 
Namely, as noted in the original review, in all but the last 11,000  years, the predominant fluids consumed by humans were water and breast  milk. That’s it.  As well (and this is just me speaking), it’s only been  within the last 75-100 (ballpark guess) that we’ve inundated our diets  with a plethora of artificial sweeteners and liquid calories.  Now I  wouldn’t go so far as to say that fruit juice and the like make people  fat, but I think it’s safe to assume that it’s not just a coincidence  that there are many of you out there who tend to rely on calorie  containing beverages and often wonder why it’s so hard to lose any  weight.  Something to think about.