Studies have also shown a significant reduction in systolic and diastolic blood pressures after Zinc supplementation .
This first comprehensive systematic review and meta- analysis on the effects of Zinc supplementation in patients with diabetes demonstrates that Zinc supplementation  has beneficial effects on glycaemic control and promotes healthy lipid parameters .
The number of people with diabetes and pre-diabetes are exponentially increasing .
Studies on humans have shown the beneficial effects of Zinc supplementation in patients with diabetes .
The present study aims to systematic ally evaluate the literature and meta-analyze the effects of Zinc supplementation on diabetes .
The Impact of Vitamins and/or Mineral Supplementation on Blood Pressure in Type 2 Diabetes
Objective : The present study design ed to assess the effect of Mg+Zn , vitamin C+E , and combination of these micronutrients on blood pressure in type 2 diabetic patients . Material s and Methods : In a r and omized , double-blind , placebo controlled clinical trial , 69 type 2 diabetic patients were r and omly divided into four groups , each group receiving one of the following daily supplement for three months ; group M : 200 mg Mg and 30 mg Zn ( n = 16 ) , group V : 200 mg vitamin C and 150 mg vitamin E ( n = 18 ) , group MV : minerals plus vitamins ( n = 17 ) , group P : placebo ( n = 18 ) . Blood pressure was measured at the beginning and at the end of the trial . Treatment effects were analyzed by general linear modeling . Results : Results indicate that after three months of supplementation  levels of systolic , diastolic and mean blood pressure decreased significantly in the MV group by 8 mmHg ( 122 ± 16 vs. 130 ± 19 mmHg ) , 6 mmHg ( 77 ± 9 vs. 83 ± 11 mmHg ) , and 7 mmHg ( 92 ± 9 vs. 99 ± 13 mmHg ) , respectively ( p < 0.05 ) . Also combination of vitamin and mineral supplementation had significantly effects in increasing serum potassium ( p < 0.05 ) and in decreasing serum malondialdehyde ( p < 0.05 ) . There was no significant change in the levels of these parameters in the other three groups . Conclusion : The results of the present study indicated that in type 2 diabetic patients  a combination of vitamins and minerals , rather than vitamin C and E or Mg and Zn , might decrease blood pressure
Studies have also shown a significant reduction in systolic and diastolic blood pressures after Zinc supplementation .
This first comprehensive systematic review and meta- analysis on the effects of Zinc supplementation in patients with diabetes demonstrates that Zinc supplementation  has beneficial effects on glycaemic control and promotes healthy lipid parameters .
The number of people with diabetes and pre-diabetes are exponentially increasing .
Studies on humans have shown the beneficial effects of Zinc supplementation in patients with diabetes .
The present study aims to systematic ally evaluate the literature and meta-analyze the effects of Zinc supplementation on diabetes .