Study	Gender of Participants	Vitamin D Supplement	Sub Group	Dose (IU)	Follow Up in Weeks	Number of Participants	Mean 25(OH)D in nmol/L	SD in nmol/L
Ala-Houhala, M., et al., 1988 [17]	Both	None		0	52	27	43.3	19.5
		Not specified		400	52	24	71.3	23.8
Aloia, J., et al., 2010 [18]	Both	D3		4000	13	35	111.7	30.0
Aloia, J.F., et al., 2005 [19]	Female	D3		800	13	104	70.8	22.9
Biancuzzo, R.M., et al., 2010 [20]	Both	None		0	11	17	45.3	16.0
		D3	In orange juice	1000	11	16	76.8	21.3
			In capsules	1000	11	18	70.0	27.5
		D2	In orange juice	1000	11	20	66.0	18.5
			In capsules	1000	11	15	68.5	26.3
Bolton-Smith, C., et al., 2007 [21]	Female	None		0	52	55	47.8	17.3
					104	55	48.8	13.3
		D3	Vit D + Calcium	400	52	55	74.3	15.3
					104	55	74.5	15.0
			Vit D + Vit K + Calcium	400	52	58	73.0	16.3
					104	58	70.8	16.5
Cashman, K.D., et al., 2012 [22]	Both	None		0	5	13	39.7	11.1
					10	13	41.2	11.1
		D3		800	5	16	64.1	9.5
					10	16	69.0	8.7
Dawson-Hughes, B., et al., 1991 [23]	Female	None		0	48	121	60.6	28.5
		D3		400	48	125	92.1	23.6
Dawson-Hughes, B., et al., 1995 [24]	Female	Not specified		100	39	124	66.3	25.5
				700	39	123	100.1	24.5
Diamond, T., et al., 2013 [25]	Both	D3		2000	12	11	75.3	15.9
				5000	12	15	114.4	22.2
Gallagher, J.C., et al., 2014 [26]	Both	D3	African American women	2400	52	20	97.8	16.5
			White women	2400	52	5	108.0	14.3
Harris, S.S., et al., 2012 [27]	Both	None		0	12	43	37.4	16.1
		D3		4000	12	46	81.1	27.9
Holick, M.F., et al., 2008 [28]	Both	None		0	11	16	47.0	19.8
		D3		1000	11	20	72.3	27.5
		D2		1000	11	18	67.0	24.0
		D3+D2		1000	11	14	71.0	19.3
Jensen, C., et al., 2002 [29]	Female	Not specified		400	52	22	50.3	19.1
					104	22	80.4	21.6
					156	22	76.6	22.1
Karkkainen, M.K., et al., 2010 [30]	Female	D3		0	156	287	55.9	21.8
				800	156	306	74.6	21.9
Kilpinen-Loisa, P., et al., 2009 [31]	Both	D3		800	26	72	82.0	21.0
Kyriakidou-Himonas, M., et al., 1999 [32]	Female	D3		800	12	10	63.3	11.1
Lagunova, Z., et al., 2013 [33]	Both	D3		2000	4	11	78.9	15.3
Lappe, J.M., et al., 2007 [34]	Female	None		0	52	446	71.1	19.8
		D3		1100	52	288	96.0	21.4
Li-Ng, M., et al., 2009 [35]	Male	D3		2000	12	78	88.5	23.2
Logan, V.F., et al., 2013 [36]	Both	None		0	4	13	71.0	15.3
					8	13	61.0	15.3
					13	13	44.0	15.3
					25	13	37.0	17.9
		D3		1000	4	23	83.0	12.2
					8	23	83.0	14.7
					13	23	80.0	17.1
					25	23	80.0	19.6
		D2		1000	4	25	70.0	12.9
					8	25	66.0	12.9
					13	25	62.0	14.7
					25	25	56.0	11.0
Molgaard, C., et al., 2010 [37]	Female	None		0	26	73	47.0	20.0
					52	73	39.7	17.7
		D3		200	26	74	54.5	12.0
					52	74	52.9	16.3
				400	26	73	59.4	13.2
					52	74	57.9	14.3
Nelson, M.L., et al., 2009 [38]	Female	None		0	52	31	72.7	27.8
		D3		800	52	31	97.4	31.3
Oosterwerff, M.M., et al., 2014 [39]	Both	None		0	8	53	24.0	16.0
					16	53	23.0	15.0
		D3		1200	8	57	58.0	12.0
					16	57	60.0	16.0
Orwoll, E.S., et al., 1988 [41]	Male	None		0	26	46	55.0	15.0
					52	46	60.0	18.0
		D3		1000	26	46	75.0	18.0
					52	46	85.0	20.0
Orwoll, E.S., et al., 1989 [40]	Both	None		0	104	14	45.0	22.5
		D3		1600	52	14	240.0	97.5
					104	17	225.0	87.5
Pignotti, G.A., et al., 2010 [42]	Female	None		0	13	29	58.8	24.7
		D3		400	13	29	59.5	17.5
Putman, M.S., et al., 2013 [43]	Both	D3		200	11	25	28.9	7.0
				1000	11	29	30.1	6.6
Rajakumar, K., et al., 2008 [44]	Both	D3	Non-obese	400	4	18	72.8	16.8
			Obese	400	4	21	65.5	20.3
Schaafsma, A., et al., 2000 [45]	Female	D3		400	13	46	108.0	25.0
					26	46	111.0	23.0
					52	46	121.0	27.0
Schnatz, P.F., et al., 2014 [46]	Female	None		0	104	291	45.5	23.7
		D3		400	104	285	60.8	30.5
Schou, A.J., et al., 2003 [47]	Both	None	Placebo then supplementation	0	4	10	33.7	10.4
			Supplementation then placebo	0	4	10	32.3	13.0
		D3	Placebo then supplementation	600	4	10	50.2	14.2
			Supplementation then placebo	600	4	10	43.4	9.2
Smith, S.M., et al., 2009 [48]	Both	None		0	18	18	38.0	17.0
					25	18	34.0	12.0
		D3		400	18	19	55.0	19.0
					25	19	57.0	15.0
				1000	18	18	63.0	20.0
					25	18	63.0	25.0
				2000	18	7	71.0	20.0
					25	7	71.0	23.0
Van Der Klis, F.R., et al., 1996 [49]	Female	None		0	5	41	58.5	10.7
		D3		400	5	19	87.9	28.1
				800	5	19	87.9	28.1
						19	102.6	28.8
Vieth, R., et al., 2001 [50]	Both	D3		1000	12	33	68.7	16.9
				4000	12	28	96.4	14.6
Wamberg, L., et al., 2013 [51]	Both	None		0	26	26	46.8	21.2
		D3		7000	26	26	110.0	17.3
Zwart, S.R., et al., 2011 [52]	Both	Not specified		2000	13	15	73.0	17.0
					26	15	79.0	16.0

Footnote: SD: Standard Deviation: Reported SD ranged from 6.6 to 97.5, had a mean value of 19.9 and a median value of 17.8 nmol/L.