Vegan Bodybuilding & Fitness

Healthy Food Defines You
It is currently Mon Oct 20, 2014 6:08 pm

All times are UTC - 5 hours




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: Is 4cal/gram for carbs & proteins an exact number?
PostPosted: Tue Jun 06, 2006 7:34 am 
Offline
Rabbit

Joined: Thu Jun 01, 2006 10:03 am
Posts: 14
I'm asking this because I've heard some people saying carbs and proteins have 5cal/g and also..when reading the nutrient info for certain things I buy and do my 4/4/9 calorie math..it doesn't add up properly. Does anyone know if these 4,4,9 numbers are exact? or are they just approximations?

_________________
--------------------------
ratemysupps.com
--------------------------
The Best Source For SUPPLEMENT REVIEWS On The Web


Top
 Profile  
 
 Post subject:
PostPosted: Tue Jun 06, 2006 9:45 am 
Offline
Elephant

Joined: Sun Dec 18, 2005 12:23 pm
Posts: 1484
Location: Illinois
I've never heard or read any source that says protein and carbs have 5 calories per gram. But, it's very likely that the numbers for calories per gram usually associated with macronutrients (4 for carbs and protein, 9 for fat, 7 for alcohol...which isn't really a macronutrient, but it does have a different calorie count) are rounded up or down. So maybe protein is something like 3.9 and carbs are 4.2.


Top
 Profile  
 
 Post subject:
PostPosted: Tue Jun 06, 2006 9:50 am 
Offline
Stegosaurus
User avatar

Joined: Sun Oct 16, 2005 4:05 pm
Posts: 3899
Location: Austin, TX
Well, it's not even that. It might be that the amount of protein/fat/carbs in the product you're consuming is just rounded down or up.

For instance, if you had 6.5 grams of protein, that's 26 calories.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 07, 2006 9:50 am 
Offline
Rabbit

Joined: Thu Jun 01, 2006 10:03 am
Posts: 14
i've just heard that protein actually has 5 but because nitrogen is not used as nergy it's considered as 4 calories.

_________________
--------------------------
ratemysupps.com
--------------------------
The Best Source For SUPPLEMENT REVIEWS On The Web


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 07, 2006 7:00 pm 
Offline
Manatee
User avatar

Joined: Sun Apr 30, 2006 3:52 pm
Posts: 274
Location: New York City
I think I remember from chemistry class that the 4/4/9 is exact, they calculate it by the molecule or something- I'm sure you could search for nutrition or chemistry or nutritional chemistry on www.wikipedia.org for an in depth explanation-

JB


Top
 Profile  
 
 Post subject:
PostPosted: Thu Jun 08, 2006 3:45 am 
Offline
Rabbit

Joined: Thu Jun 01, 2006 10:03 am
Posts: 14
oh well..ill just stick with 4/4/9

_________________
--------------------------
ratemysupps.com
--------------------------
The Best Source For SUPPLEMENT REVIEWS On The Web


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron



{ ASACP_CREDITS }
{ ASACP_CREDITS }
{ ASACP_CREDITS } Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group