-
No, "These formulas are based on body weight, which does not take into account the difference in metabolic activity between lean body mass and body fat. Other formulas exist which take into account lean body mass, two of which are the Katch-McArdle formula, and Cunningham formula."
https://en.wikipedia.org/wiki/Basal_metabolic_rate
That's what I mean by it being the best estimate, since I don't have DXA scans etc to work off.
ie. Oshima:
REE (men & women) = 2.3 x bone mineral weight + 4.5 x adipose tissue weight + 13 x skeletal muscle weight + 54 x rest weight*
Is BMR not based on lean body weight rather than actual body weight though?