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TOPIC: Android App Pie Chart data incorrect

 
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July 26, 2012 10:50 AM
I had 72g of Protein and 32g of Fat, so how is the Fat slice of the pie chart larger? Please see pictures below.

One day of data
https://www.dropbox.com/s/wpzfp5uykit9n54/Screenshot_2012-07-26-13-47-20.png

Pie chart for day's data
https://www.dropbox.com/s/6btgo2fjsqd9brw/Screenshot_2012-07-26-13-47-27.png
July 27, 2012 7:36 PM
The pie chart in the app is meant to help those who are conscious of balancing their macronutrient ratios. Which is to say, keeping their intake of protein, fat, and carbohydrates in proportion for the course of a day.

So, the pie chart will always add up to 100%, to show the relative amounts of fat, carbs, and protein you have eaten. It will not reflect how much of a macronutrient you still need to consume to meet your calorie goals: that information can be seen by tapping "See All Nutrients." As an example, if the only food you logged so far in your day was a tablespoon of butter, your pie chart would show something like 97% fat, 3% protein against a goal of perhaps 30% fat and 15% protein. This is not to say that you have eaten 97% of your fat goal, but rather that of the calories you've consumed, the vast majority of the calories came from fat. Over the course of the day, if you were to log more foods with carbs and protein, the fat ratio percentage would drop, and the other nutrient ratios would increase.

The default ratios may also be changed by logging in to our site at http://www.myfitnesspal.com and clicking "Goals" then "Change Goals" and then "Custom". For instance, bodybuilders will often set the protein ratio higher, and lower the carb ratio, at certain parts of their training regimen.

Also, please bear in mind that while grams of carbs and protein have 4 calories each, a gram of fat has 9 calories. So fewer grams of fat will gain purchase on the pie chart faster than grams of carbs or protein.

Hope this helps.

Cheers,
Scott
MyFitnessPal Staff
July 27, 2012 7:49 PM
Hey! I think the staff guy up there may have missed your question.

The pie chart shows percent CALORIES. Since fat is about 9 cals/g and protein is only around 4 cals/g:

32g fat x 9 = 288 cals
72g protein x 4 = 288 cals

Fat shows up as slightly higher because 9 and 4 are approximations.

Hope this helps!
July 30, 2012 10:27 AM
Thanks, Kevin! That's exactly what I needed to know.

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