Table 2.

Vitamin D content of diets fed and estimation of vitamin D intake from diet and supplement for dogs with complete owner-provided diet histories

(Medians and ranges)

	Group
	Control		Treatment†
	Median	Range	Median	Range
Dogs (n)	5		7
Intake (kJ/d)	4420	2630–6700	4140	1540–7350
Vitamin D (μg/418·4 kJ/diet)	1·9	0·6–2·6	0·5	0·3–2·0
Vitamin D intake from diet (μg/kg BW0·75)	1·9	0·6–2·3	0·4	0·2–1·8*
Vitamin D intake from supplement (μg/kg BW0·75)	0		2·3	2·2–2·3‡

BW, body weight.

^*Values were significantly different between control and treatment groups (P = 0·03; Wilcoxon two-sample test).

^†Daily oral vitamin D₃ supplementation, 2·3 µg/kg^0·75.

^‡Value based on measurement of vitamin D in supplement at the beginning of the trial.