nutrition facts percentage to grams

montherzaben wrote: »

hi
some products has macros lables as percentage not grams,for example
total fat 2.7%
carb64%
prot 12%
can i convert it to grams?

Sure. 2.7% is 2.7/100 x whatever the whole is. Percent of what though? Percent of the RDA?

Is this a food label? Or within mfp?

MFP should give you both. I'm on mobile.thus is found in Nutrition

kshama2001 wrote: »

jemhh wrote: »

montherzaben wrote: »

hi
some products has macros lables as percentage not grams,for example
total fat 2.7%
carb64%
prot 12%
can i convert it to grams?

What food is this? I've never seen a food label that only lists info like this. Are those percentages related to total grams (weight) of the food? I'm assuming that the missing 21.3% is water.

The percentages are referring to the RDA for a 2,000 calorie diet.



I'd like some tips for turning grams into percentages from when I am verifying info from the USDA database, which is all grams, with the MFP database, which is part percentages.

If you're talking about vitamins A and C and the minerals calcium and iron, nutrition labels in the U.S. express them as percentages of daily values known as Reference Daily Intakes: 5000 IUs (international units) for vitamin A, 60 mg for vitamin C, 1000 mg for calcium, and 18 mg for iron.

http://www.fda.gov/Food/GuidanceRegulation/GuidanceDocumentsRegulatoryInformation/LabelingNutrition/ucm064928.htm


ETA: you may already know this, but the actual recommended daily amounts vary by age, gender, and whether you're pregnant or lactating, so 100% of these vitamins or minerals may be more or less than you actually need. And 100% of vitamin A (on a label) is, I believe, at least 67% more than the current recommended daily amount for any age/gender/reproductive category; apparently it's based on old studies and they've never changed the labeling rules to reflect more recent data?