Table 1. Equations evaluated in this study.

Equation	Sample size	Remarks on population
Cunningham [17]	M = 120 F = 103	Healthy adults, trained athletes were excluded
De Lorenzo [13]	M = 51	Athletes, exercising at least 3 hours a day
FAO [21]	N = 11000	Mainly based on Schofield data, also including group mean values also
FAO (height) [21]	N = 11000	Mainly based on Schofield data, also including group mean values
Harris-Benedict 1919 [21]	M = 136 F = 103	Mainly normal weight subject
Harris-Benedict 1984 [28]	M = 168 F = 169	Mainly normal weight subject
Mifflin [18]	M = 251 F = 247	Including obese subjects
Mifflin (FFM) [18]	M = 251 F = 247	Including obese subjects
Owen [19], [20]	M = 60 F = 44	Including obese subjects
Owen (FFM) [19], [20]	M = 60 F = 44	Including obese subjects
Schofield [29]	M = 3575 F = 1239	47% Italian subjects
Schofield (height) [29]	M = 3575 F = 1239	47% Italian subjects