In April 2020 researchers from Iran and Puerto Rico published their review of the medical scientific literature to assess the effect of different dietary approaches on systolic and diastolic blood pressure in diabetes type 2. A total of 24 studies, involving 1,130 individuals, met the search criteria and were included in the review. Results showed that the low-sodium, high-fibre, DASH, low-fat, low-protein and vegan diets were significantly more effective in reducing systolic blood pressure when compared to a control diet, whereas the high-fibre, low-fat, low-protein and vegan diets were significantly more effective in reducing diastolic blood pressure. In addition, the low-sodium and high fibre diets appeared to be the most effective at reducing both systolic and diastolic blood pressure in individuals with diabetes type 2.
Abbasnezhad A et al. Effect of different dietary approaches compared with a regular diet on systolic and diastolic blood pressure in patients with type 2 diabetes: A systematic review and meta-analysis. Diabetes Res Clin Pract. 2020 Apr 4;163:108108. [Epub ahead of print]