How do you calculate grams of iron and calcium from %'s?

davisagoetz

Calcium and iron are both tracked by % only. How do I figure out how many grams the %'s represent?

Jean

For foods labeled in the United States, your Daily Value percentages have been based on a "2,000 calorie diet for a healthy adult." These percentages were recommended by the USDA, and were not that easy to understand actual numbers.

If you'd like to read more about the percentage breakdowns, please see: http://www.fda.gov/Food/IngredientsPackagingLabeling/LabelingNutrition/ucm274593.htm#see6

Currently, the 100% value from the USDA Food Labels translates as follows in MyFitnessPal:
Vitamin A: 5,000 IU
Vitamin C: 60mg
Calcium: 1000mg
Iron: 18mg

You may also review some recent changes to the nutritional goals we assign to your profile here:
https://myfitnesspal.zendesk.com/hc/articles/360032626031-A-Message-about-MyFitnessPals-updated-nutrition-goals

Please remember this is based from a "2,000 calorie diet for a healthy adult." Your best recommendation is to consult with a doctor or nutritionist to find the values that work best for you.

If you know your daily needs are higher than the recommended value presented on standard food labels, or those recommended by our program, you can adjust your goal to a different percentage than "100%" of the recommended value.

To customize your targets, log into your account on our website at http://www.myfitnesspal.com. Sign into the members log in area by clicking the blue "login" link, using the same log in information you use to log into the app. Once you've logged in, go to "My Home", then "Goals", then hit the "Edit" button next to Daily Nutrition Goals. You'll be taken to a page where you can set your own targets for all of the nutrients we track.

Once you've saved your changes, those same changes will appear in the app the next time the app syncs to the website - this should happen automatically with a valid internet connection.

If you have any other questions on this, please visit: https://myfitnesspal.zendesk.com/hc/en-us or send us an email to support@myfitnesspal.com.

Countandsubtract

I'm not finding anything easily either. There's a website that says how much you should have by your gender etc. I've listed the website and then the table on which those values are found.

I'm not sure if that meets your needs exactly.




https://ods.od.nih.gov/factsheets/Iron-HealthProfessional/

Table 1: Recommended Dietary Allowances (RDAs) for Iron [5]

Countandsubtract

Ah!
This is better: below are website and the headings of the sections to answer the question.


Iron 18mg
Calcium 1300mg


https://www.fda.gov/food/new-nutrition-facts-label/daily-value-new-nutrition-and-supplement-facts-labels
Daily Values Not Changed
Daily Value Increases


Edit:
Putting the two sites together seems to suggest that they based the value on adult women 19-50. They require more iron than most other groups. The only group with a higher requirement is pregnant women.