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Need Net Calories!

  1. My Garmin Fenix 6 does not show Net Calories.  Ten months ago "gekaram" raised this issue but the thread does not show a resolution.  His comment was apparently ignored.

** Net Calories is a critical metric for anyone trying to control their weight--whether they want to maintain or go up or go down.

I hope others will chime in.  Agree with me, or tell me where I’m wrong. Thanks.

  1. Garmin defines Net Calories here: https://support.garmin.com/en-US/?faq=lkl4cwCLlK7ox362uGQEV7.

I’m not sure their taxonomy of calorie definitions makes sense. 

They say, Net Calories = Active Calories - Consumed Calories.

The site says, "Active calories are the calories that you burn while moving throughout the day."

It also says, "Total Calories is a combination of your Active and Resting Calories."

So apparently Active Calories do not include Resting Calories.  If that is true, then in my mind Net does NOT equal Active minus Consumed.  NET actually equals Total Calories minus Consumed Calories.  To bypass any confusion in the Garmin definitions, Connect should show Total Calories IN minus Total Calories OUT. (Or they could show OUT minus IN, but I think IN minus OUT is more useful.)

  1. Connect on iOS shows Active, Consumed (linked to My Fitness Pal), and Goal (set in MFP). So far so good. 

Then it takes Goal + Active to equal an "ADJUSTED GOAL." Example from yesterday: My Goal is to consume 1900 per day.  My Active was 1300.  So my Adjusted Goal was 1900 + 1300 = 3200.

Then it takes Adjusted Goal - Consumed to show "REMAINING".  Example: 3200 - 1900  = 1300 REMAINING.

So Adjusted Goal will always equal Active Calories.

** I do not understand how this "Adjusted Goal," based on a calorie goal from MFP helps anyone.  Whose "goal" is that?  Not mine. It is simply saying my goal should be to eat all the calories I burned being Active. Not helpful.

  1. This would help me, and I think others:

(Consumed Calories from MFP)  MINUS  (Resting Metabolic Rate (RMR), which is what Garmin uses PLUS Active Calories)

Example:

I know from previous measurements that my RMR is about 2250. Recall that I consumed 1900 yesterday and my Active was 1300.  SO...

1900 - (2250 + 1300) = -1650

That shows I had a calorie deficit of 1650 yesterday (which I had to calculate manually).  Useful to know since I'm losing weight.  That's a large deficit, but it averages out over a week's time to a more reasonable deficit.

If someone wants to gain weight, the same calculation should show a positive number.  If they want to maintain, the number should be close to zero.

Going back to that "Adjusted Goal", if I had eaten another 1300, my deficit yesterday would have been 3200 - 3550 = -350.  That deficit is not enough to meet my goals.

  1. Conclusion:  I am not a dietitian. Maybe I'm wrong.  If so, I hope someone will show me.  If I'm right, Garmin, please show us Calories Consumed MINUS Total Calories Used. Watching these forums, I've noticed that Trux usually has great answers. I hope  will chime in.
  • As for the Net Calories - it seems poorly worded on Garmin's website, but on the other hand I do not see the term "Net Calories" used anywhere in Garmin Connect, hence it is hard to guess what exactly they are referring to.

    As for the Adjusted Goal - your daily goal should cover the RMR (+ or - the Calories you want to consume more or less depending whether you plan adding or losing weight). If you do any exercises (burning Active Calories), you need to consume some more food to compensate this extra energy expenditure.

    And finally the value "Remaining" tells you how many Calories still remain to be consumed to meet you goal. If you do not consume the Remaining Calories, you'll be surpassing your goal if your intention is the weight loss. And oppositely if your intention is gaining weight, then you've missed the goal, and would need to consume more food in order to gain the weight you are looking for.

  • Trux, thanks for your time responding.

    So it appears we agree that Garmin's calorie definitions are not helpful.  Sloppy definitions lead to sloppy logic, which leads to wrong instructions and confused users. Right--why explain Net Calories and not give us that in the Connect?  These inconsistent definitions make me wonder what "Active" really counts.

    I wish we could agree that it would be useful to give us a very simple calculation of Calories In minus Calories Out = Calorie surplus or deficit.  I would like that to be the calculation for Net Calories.  I know it would help me, and from my search in the forum, it would help others too.

    I understand the logic of the Adjusted Goal and the Remaining. However, Garmin doesn't know me.  I know my history, how my body responds to various levels of calorie intake and exercise, and I know my lifestyle across a week, month, and year.  I have taken all that into account and know that 1900 calories a day will allow me to lose weight slowly while gaining muscle. Garmin's daily "Remaining" does not take any of that into account.

  • I wish we could agree that it would be useful to give us a very simple calculation of Calories In minus Calories Out = Calorie surplus or deficit.

    That's what the Remaining Calories are. Just with the opposite sign (not Calories In - Calories Out, but oppositely Calories Out - Calories In). Appart of the sign, it is exactly what you are asking for. In case you wish it does not use the Daily Calories Goal, but rather the RMR instead, change the goal to be equal to the RMR.

    I have taken all that into account and know that 1900 calories a day

    Does not make much sense to me. In some days you can burn as little as 300 Active Calories, on other days it can be 3,000, so the Calories Consumption Goal must be adjusted to cover the extra energy expenditure.

  • Garmin's use of the Adjusted Goal is the problem. I think changing my calorie goal to account for Garmin's method is the tail wagging the dog.

    I have a whole story about how my trainer arrived at 1900 after measuring my body composition and observing what happens at different calorie intake, but I'll spare you. I could list my calories In for a week compared to the Out and the results.  The fact is, 1900 is what I have to eat to lose, regardless of my exercise. I'll just have to ignore Garmin's calculations.

    I'll terminate my query here.  Thanks for your time, trux.  Reading your answers about how the watches work has helped me in other areas. To the gym now.

  • The fact is, 1900 is what I have to eat to lose, regardless of my exercise.

    In that case I do not understand why you've bought a Garmin watch. If you believe you just need to keep your consumption under 1,900 Calories, regardless whether you burn 300 or 3,000 extra Active Calories above your RMR, then you do not need any fitness device measuring your energy expenditure. 

  • I try to explain the functionality yet in another way:

    The Daily Goal (coming from MFP) represents how many Calories you should consume in order to lose (or gain) the desired weight, when you rest all day. Any Active Calories burn extra energy, and you can eat more. 

    So if you already know from your coach that your daily goal is 1,900 Calories when you exercise (that's in fact the Adjusted Daily Goal), you just have to check your stats, and see how many Active Calories you burn daily in average, and deduce that amount from the Daily Goal at MFP.

    So for example, let's tell you daily burn in average 600 Active Calories. You know you'd like to have the final daily goal (Adjusted Daily Goal) 1,900 Calories. In that case, set your MFP Daily Goal to 1,900 - 600 = 1,300 Calories. The Adjusted Daily Goal will then show you whether you were exercising enough to burn the Calories defined by your goal. You will see whether you can eat a bit more than the planned 1,900 Calories (when you exercised a lot), or whether you have to do another workout to burn the Calories you already consumed and did not spend.

  • I really do get the logic that you've explained, and I understand what you wrote in your post after this one.  It's just not useful to me.  First, my body doesn't work that way.  I don't know why and neither does my trainer.  I seem to burn fewer calories than my profile would indicate.  My body is more complex than a calculator and is not exactly like a checkbook.  I'm not going to run to the gym to do another workout after dinner if it turns out I ate too much or didn't expend enough.  I'm not going to add 1000 calories to my dinner if my deficit is too large.  Neither action is practical for me, and I think it's not practical for most people.

    Since I think differently than Garmin, I have unlinked MFP from Connect. Now for each day Garmin will tell me my RMR, my Active, and the total.  I will have to compare MFP calories to Garmin's total and do the math. Not hard.  I just wish Garmin would do it. You've said that's what it does. I respectfully disagree. As long as Garmin bases the math on my MFP goal, it's not going to do what I want it to do--just a simple In - Out (or Out - In, I don't care which).

    So why buy a Garmin watch?  Weight tracking, Sleep analysis, Body Battery (love this), HRV stats (illuminating!), Heart rate, Stress monitor, Oxygen metrics, Respiration, Blood pressure tracking. I don't care about Steps. There's just one feature I don't need.

    Thanks once more for your time, trux. I'm still a fan.

  • First, my body doesn't work that way

    Everybody's body works in that way. The more work your body does, the more energy it burns. You cannot eat the same way if you stay a month long laying in your bed without moving, as when you do 200 km on a bike every day. That would deny the most fundamental principles of physics. 

  • Obviously my body obeys Physics.  It may be that my RMR does not match my profile.  I don't know.  Something is off.