Changing Carbs in pie chart to net carbs

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minitata

Joined: Jan 17
Posts: 25

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Posted: 08 Feb 2017, 06:28
Hi Everyone

Is it possible to change the carbs in the pie chart at the bottom of the food page to net carbs. I try to keep my carbs under 5% but the percentages are out as they include fibre - which also affects my challenges Confused

Any help welcome.

LostSun

Joined: Oct 16
Posts: 33

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Posted: 08 Feb 2017, 08:19
From the "My FatSecret" tab, click on My Settings on the right side. Scroll down and you will see which Food Diary Nutrition Facts you can select. Net Carbs is one of them (deselect Carbs and choose Net Carbs instead)
minitata

Joined: Jan 17
Posts: 25

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Posted: 08 Feb 2017, 08:49
The carbs in the pie chart are still the total carbs. Today I'm at 12% which is the total carbs, whereas net carbs are 6%. If I take out the total carbs at the top the percentage doesn't change
Draglist

Joined: Jun 12
Posts: 933

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Posted: 08 Feb 2017, 09:30
I sure would love to see this as an option at Fat Secret. They allow the choice in the column form, so would love to see that extended to the pie chart. "Reporting" this thread to see if they can consider it.
LostSun

Joined: Oct 16
Posts: 33

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Posted: 08 Feb 2017, 11:53
Ah I see what you're saying. However, since percentages are based off of your total calories, it would be impossible for calories from net carbs to be a lower percentage of your total calories since the other macros don't change and percentages are relative. For example, say you eat 1600 calories, which includes 100g of protein and 80g of fat. Those add up to 1120 calories, which means the remaining 480 calories came from carbs, whether it includes fiber/sugar alcohols or not. So whether you want to say that 30% is from carbs or net carbs makes no difference since its not like some of the calories will disappear just because you change the pie chart to net carbs. In other words, when you are looking at net carbs you are subtracting GRAMS not calories, and the pie chart is based on calories. Does that make sense?
minitata

Joined: Jan 17
Posts: 25

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Posted: 09 Feb 2017, 06:18
Yes Lost Sun, but as fibre isn't digested it doesn't affect your body and as such is equal to not eating them. If I eat 25 grams of gross carbs (100 calories) but 12.5 of those grams are fibre (50 calories) I only digest 50 calories - makes a big difference to blood sugar and ketones. Gross calories include glucose, fructose, starch and fibre. The first and third are digested anywhere the second only in the liver and needs to be slowed down by fibre to stop it being turned into fat.

LostSun

Joined: Oct 16
Posts: 33

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Posted: 09 Feb 2017, 09:13
You do in fact absorb some calories from fiber after it is broken down into digestible pieces by bacteria in the gut. Estimates vary since its hard to determine, but 1.5-2 calories/gram is the generally accepted estimate.

In any case, I say this is not something to worry about. Like I said, percentages are relative anyway, and in my opinion not a good guideline regardless, since the percentage is going to vary based on your actual consumption for the day and your intake of the other macros.

I am of the mindset that your protein goal should be based on grams, as should your carbs or fat, depending respectively on if you are following a carb or fat focused WOE, and the remaining macro should be used to reach your calorie goal.

Obviously some people seem to find the pie chart handy for some reason, though.

One last thing supporting my encouragement to "not worry about it": look at the food labels and do the math. Here in front of me is a tub of chicken salad that is 190 calories per serving, which includes 13g fat, 6g carb, 2g fiber, and 13g protein. The first thing that stands out is "calories from fat" is 110. Well, 13*9 = 117, and that's what fat secret is going to use in its pie chart. I even tested this by adding the chicken salad to my diary for this Saturday, and the resulting pie chart is 12% carbs, 61% fat, and 27% protein. Since the calories from fat is 110, the actual fat percentage is ~58%, which means every section of the pie is wrong right from the start, without even taking into account how fiber affects the carb calories. At estimated 13g, the protein section of the pie chart should be anywhere from 26.5 to 28.2% (grams range of 12.6 to 13.4), leaving 13.9% to 15.6% to be accounted for by carbs. Go ahead and do some carb calculations and you'll find that your results should be 12.6% if you use all 6g of carbs, 8.4% if you completely subtract fiber, and somewhere between 10 to 10.5% if you account for some of those fiber calories.

So, once again, I say don't worry about it. Either way it's going to be wrong. Yes, I am using one food label as an example, but the majority of labels are "off" to some degree, so add up the errors over multiple foods and ingredients over the day and you just aren't going to get that "accurate" pie chart that you seek, regardless.
josejimenez1

Joined: Jan 18
Posts: 1

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Posted: 05 Jan 2018, 00:07
EVEN IF IT'S WRONG CAN WE HAVE THE OPTION? HOW HARD CAN IT BE TO ADD
525manuel

Joined: Feb 18
Posts: 1

      quote  
Posted: 13 Feb 2018, 22:42
That Net Carb option isn't even on the app. Im about to say screw it and pay the 50 bucks a year for MyFitnessPal -_-



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