This very recent journal article, Int J Clin Pract. 2003 May;57(4):258-61. "The effect of vitamin D3 on insulin secretion and peripheral insulin sensitivity in type 2 diabetic patients" concludes that their results showed a decrease of 21.4% in insulin resistance after one month they suggested vitamin D3 deficiency may at least partly contribute to the impairment of insulin secretion and probably of insulin action.

Vitamin D on the order of 1000 UI might well help type II diabetic to get blood sugar under control. Up to 4000 IU/day is considered safe. Remember that you should also take calcium and magnesium with Vitamin D because increased D levels cause bone loss when insufficient calcium is in the blood.

Here is another recent medical journal article showing vitamin D can help in diabetes. You should seriously consider taking both 1000IU of vitamin D and also DHEA, both of which have shown an ability to stablize sugar and decrease it.

Br J Nutr. 2003 May;89(5):552-72. "Vitamin D in preventive medicine: are we ignoring the evidence?"

The paper points out that recent medical trials
have demonstrated that supplementation with vitamin D or its metabolites is able:

(i) to reduce blood pressure in hypertensive patients;

(ii) to improve blood glucose levels in diabetics;

(iii) to improve symptoms of rheumatoid arthritis and multiple sclerosis.

These are important results for all diabetics.