BMR Help

PositivelyFlawed

I did read the tons of threads on BMR on the forum, but wanted something more specific to me.

so if i calculate using Mifflin-St.Jeor my value is 2021 BMR using Katch McArdle (and a bodyfat% calculated via measurement not caliper-and yes i know this isn't ideal) my value is 1005 BMR <--- this seems insane. I went around and did like 10 different calculators and some gave me around the 1005 and others around 2021. MFP gives 2019. This is a lot more than +/- 10% difference. If i can to believe that 1005 calories is my BMR then i'd have to eat 500 calories a day at a low activity level or exercise my *kitten* off to be able to eat. This seems unreasonable - am I confused?

I have lost weight, but my concern is that it was just water weight from lowering sodium and increasing water and not actually fat loss. This week I didn't lose any weight. Is it too soon to panic and change my numbers or should i stay with what MFP is telling m?

I have a lot to lose 5'4 woman 294lbs.

malibu927

2000 sounds fairly accurate; however, to lose weight you take the calories off your TDEE (which is even higher), not your BMR.

Keep where you are, as weight loss is not linear. If you don't lose after another 2-3 weeks, then you'll need to reevaluate your goal and your logging accuracy.