I look at labels and I can't see anything that says carbs or percentage of carbs, mostly I see crude protein
Hi Lisa, as others have said, the carb content isn't usually listed on the label, so it's necessary to work it out.
Adding the percentages for protein, fat, ash, fibre and moisture, and deducting those from 100 will give you the approximate percentage of carbohydrate
by weight.
And dividing the carb % by the total dry matter % (ie. total of the 'as fed' percentages minus the moisture %) will give you the dry matter carb content.
But that is not the same thing as the
'percentage of calories' from carbs, which Dr Pierson considers to be a more useful comparison figure.
(Incidentally, the Dr Hodgkins forums seem to compare foods using just the dry matter carb content.)
But the dry matter carb content, whilst useful, doesn't tell you the whole story. It probably would do if protein, fat, and carbs all had the same calorific value, but they don't... With protein and carbs you multiply the 'as fed' values by 3.5 to get the calories per 100g, but with fat you have to multiply by 8.5. The amount of fat in a food can have quite a significant bearing on the 'percentage of calories' from carbs.
To get the 'percentage of calories' from carbs you can start out by using the nifty little Sheyderweb calculator linked to above in Squalliesmom's post, and then grab a calculator and do this: You divide the 'calories from carbs' per 100g by the 'total calories per 100g', and then multiply by 100. Bingo!
Eliz