Table 3.

Macronutrient and Energy Intake Scaled for Body Size of British Professional and Amateur Natural Bodybuilders

	Stage	PRO	SD	AMA	SD	Mean	SD	p time	p division	p time × division
Male
Protein (g/kg BW)	Start	2.9	0.9	2.8	0.6	2.9	0.7	0.060	0.814	0.889
	End	3.1	0.6	3.0	0.8	3.0	0.7
Carbohydrate (g/kg BW)	Start	4.9	1.1	4.1	1.2	4.3	1.2	0.228	0.034	0.135
	End	4.9	1.3	3.5	1.5	3.8	1.8
Fat (g/kg BW)	Start	0.6	0.3	0.8	0.3	0.8	0.3	0.024	0.549	0.363
	End	0.8	0.3	0.8	0.4	0.8	0.3
Energy (kcal/kg BW)	Start	37.2	7.5	34.5	6.1	35.2	6.5	0.089	0.124	0.301
	End	36.6	5.4	31.4	6.6	32.6	6.4
Female
Protein (g/kg BW)	Start	3.2	0.6	3.2	0.8	3.2	0.8	0.113	0.967	0.879
	End	3.1	0.8	2.6	1.6	2.8	1.4
Carbohydrate (g/kg BW)	Start	4.0	1.4	3.0	1.1	3.4	1.2	0.152	0.201	0.626
	End	3.1	0.8	2.6	1.6	2.8	1.4
Fat (g/kg BW)	Start	0.8	0.5	0.7	0.3	0.7	0.4	0.572	0.998	0.714
	End	0.7	0.3	0.7	0.4	0.7	0.3
Energy (kcal/kg BW)	Start	34.5	12.3	29.1	5.5	31.0	8.5	0.827	0.251	0.554
	End	32.2	3.1	30.2	7.6	30.9	6.3

p time, difference in means over the competition preparation diet (start, middle and end of phases), p result, division in means between PRO and AMA. Time x division interaction between diet over time and division. Differences in macronutrients and energy measured by repeated measures ANOVA. Statistical significance assumed where p < 0.05

Abbreviations: Phase stage of the competition preparation, PRO professional, AMA amateur, SD standard deviation