Physician nutrition and cognition during work hours: effect of a nutrition based intervention

Table 4 Absolute macro- and micro-nutrient intake on baseline and intervention days, with dietary reference intakes.

		Baseline		Intervention
Nutrient	DRI ^a	Mean intake^b (SD)	Energy percent distribution^c	Mean intake^b (SD)	Energy percent distribution^c	p-value for mean intake
Kcal	2200-2500	935 (442)		1345 (414)		0.008
Protein (g)	46 - 56	35 (22)	15%	54 (18)	16%	0.01
Carbohydrate (g)	240-375	129 (66)	55%	192 (73)	57%	0.005
Fat (g)	49-90	35 (22)	34%	47 (16)	31%	0.08
Saturated fat (g)	< 24-25	13 (11)	13%	13 (7)	9%	0.94
Polyunsat. fat(g)	13-16	5 (3)	5%	9 (4)	6%	0.001
Cholesterol (mg)	300	137 (128)		123 (50)		0.66
Fibre (g)	21 - 31	8 (6)		23 (7)		< 0.001
Total sugar (g)	60-95	67 (42)		90 (29)		0.02
Potassium (mg)	4700	1261 (668)		2569 (775)		< 0.001
Calcium (mg)	1000-1200	575 (459) ^d		679 (345) ^d		0.07^d
Vitamin D (ug)	15-25	0.5 (2.6) ^d		1.1 (1.1) ^d		0.71^d
Sodium (mg)	1300	1266 (684)		1744 (940)		0.05

^a Dietary Reference Intake (values shown include the range for females and males)
^b Includes intake only during the study period and does not reflect 24 hour intake
^c Total exceeds 100% given difficulty of achieving perfect precision with recording of dietary intake.
^d Calcium and Vitamin D values are presented as median (IQR) and compared using the Wilcoxon Signed Rank test.

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