is it true?

 Is it true that I can subtract the dietary fiber from the total carbs in a product to get the net carbs? (ECC) 
I just got this lavash bread which I ordered online and it tells me on the packaging that only the net carbs are absorbed by the body. 

It says:  7gr total carb
  minus 3gr dietary fiber
 totals    4gr ECC*

*net carbohydrate (ECC) is the only percentage absorbed by the body.

Thanks!!!

There is a lot of disagreement on this topic. Net carbs is the basis of the Adkins diet. The problem is, everyone's body reacts differently to carbs and fiber. Kind of like sugar alcohols. Some people subtract those as well. I counted total carbs and stayed under 30 a day the entire time I was losing. Now I have upped my carbs, and kind of do the net carb thing with vegetables and fruits (naturally occuring fiber) because I know how that effects my body. But I do look at total carb content with any type of bread or starchy product. I hope that makes sense?

I do the net carb thing but only with fiber.  I stop subtracting at 10 gms because I am suspicious of anything that has over that amount. Not sure what they have added to get that. I  also only subtract half of the sugar alchohols. They can get me in trouble...really slows down my weight loss and now that I am maintaining I figure it might cause some gain.

 Hmmm... INTERESTING  question. Well  , this  is how it works in PRACTICE  for me .

 First off  I  should qualify this by saying i  strongly limit my FATS  ... so  complex carbs are MUCH more flexible for me.... 

But  I DO  tend to stick to  higher  fiber choices ....  whether they  be  in the  unprocessed natural form (  best )  ie - fruits and particularly  veggies , or  grains  with  extra bran  and usually extra protein added too if thats a n available  choice .    ALWAYS   super low fat .  

Poop to goal  ....  is what I heard a long time ago .    As a matter of fact when i  have a slightly  non - fibrous or fatty meal ( like at a restaurant  or  as a guest)  i always  have a fig  afterwards  just to give things a little fiber and encourage them naturally on their way  along the digestive tract ...  

Also  i find drinking WATER  to help  expand that fiber is very important and helpful .