|
| Study | Intervention | Subjects | Effect |
|
| Pittas et al. [26] | vitamin D (700 IU/d for 3 years) and calcium intake | 314 | Decreased insulin resistance |
Inomata et al. [99]
| 1α(OH) vitamin D
(400 IU/d for 3 wks) | 14 noninsulin-dependent diabetes | (1) Increased insulin secretion
(2) A reduction in serum free fatty acid levels |
| Gedik and Akalin [100] | 1,25 (OH)2 vitamin D
(2000 IU/d for 6 months) | 4 patients with vitamin D deficiency | Increased insulin secretion |
| Borissova et al. [101] | 1,25 (OH)2 vitamin D
(1332 IU/d for 1 month) | 10 females with type 2 diabetes | A decrease of 21.4% in insulin resistance |
| Orwoll et al. [102] | 1,25 (OH)2 vitamin D
(200 IU/d for 4 d) | 20 patient with type 2 diabetes | No effect on insulin, glucose, c-peptide |
| Taylor and Wise [103] | 1,25 (OH)2 vitamin D
(300000 IU intramuscular) | 3 Asians with type 2 diabetes | Increased insulin resistance |
| Ljunghall et al. [104] | 1α(OH) vitamin D
(30 IU/d for 3 months) | 65 Caucasian men with impaired glucose tolerance | No difference in insulin resistance |
| Kumar et al. [105] | 1,25 (OH)2 vitamin D
( 2000 IU/d for 1 month) | 1 vitamin D deficient hypocalcemic woman | Increased glucose tolerance and β-cell function |
|
