Why is the Garmin forerunner 35 so inaccurate?

The foreruners are designed for runners. They excel at tracking your runs and keeping your training history. I'm not so sure they do well at anything else.

One thing to try is in Garmin Connect under Account Settings, click on User Settings and play with the Activity Class. I had to make adjustments a few times until I finally got something accurate (after several weeks of experience and weigh ins).

is that 209 cal including your just normal body calorie burn (I dont' know if Garmin factors that into overall or not) - my FITBIT does - so I see steps and I see not only calories from steps, but what my body burned just existing in that time period

the 1330 is probably your BMR base - that is the too survive you need x calories, every breath, movement etc that you take - gives you more calories to burn - so yeah, you could have easily burnt 200 calories in just general movement

your MFP and GARMIN will deconflict each other, but it doesn't happen until the end of the day - when it says your activity in MFP is x, garmin said y - subtract the 2 to get the difference

Other Garmin users have made posts about this issue over the past week or so. It only seems to effect HR devices. I think the built in heart rate monitoring is overestimating your calorie burns. Look up your manual and turn of the HR sensor. Let us know if that fixes the problem.

So if that 218 for exercise in MFP matches a workout synced from Garmin - then this is different than Fitbit.

Fitbit sends over total daily calorie burn - so in your example MFP would have received the whole 1728.

MFP would take that daily burn minus what it expected you to burn at this point.
If I knew your deficit I'd know what MFP expects you to burn, 1330 + 250 or 500 or 750 or 1000.

It sounds like that difference was 218 unless that was a specific workout.

So MFP did correct itself to the potentially more accurate Garmin (Garmin device sees what you actually do, MFP you told it your activity level from 4 rough choices right or wrong).

You need to go to your Exercise Diary tab for getting the full story and deciding what if anything has gone wrong.
Click on the "i" for the Adjustment and list all the info that is given.
Plus any workouts showing in the list along with the adjustment.

It could merely be that they are both estimating the final daily burn total as different, you do have 1/3 of the day left at the time of that post, almost 8 hrs.
Garmin seems to know about your MFP eating goal, and added on extra activity from something (398 calories) - but that would imply they know what activity level choice you made on MFP.

I'll bet it ends up correct by the end of the day.

Just like Fitbit - you don't want to follow 2 roads to the same destination - aggravating and confusing.
Garmin for all movement related info and goals.
MFP for all food related logging and goals.

Weird, I find that my Garmin FR35 always gives me far fewer Calories than my Flex 2, somewhere in the region of 500 fewer a day. It also takes the activity level you have set on here in to account in deciding how many Calories you have a day. So if you have very active set on here then it'll give you however many Calories that is to start with and then add your Active Calories to that number. So you might want to play with your activity level on here to work out your starting point each day.
Although technically I'm extremely active, I have mine set at Lightly and it's brought my Garmin number considerably closer to Fitbit. But I've taken 4000 steps so far today and the FR35 has credited me with a massive 30 Calories, it would have given me more had I recorded a walk of 4000 steps, rather than just mooching around.

Myfitnesspal has deleted a number of foods that I have added. This is not acceptable. I'm not going to be constantly entering the same foods over and over. Does anyone have a solution?