NASM Research Update Effects of Dietary Approaches to Stop Hypertension (DASH)style diet on fatal or nonfatal cardiovascular diseasesincidence: a systematic review and meta-analysis on observational prospective studies. Salehi-Abargouei A, Maghsoudi Z, Shirani F, Azadbakht L. Nutrition. 2013 Apr;29(4):611-8. doi: 10.1016/j.nut.2012.12.018.
Introduction • Cardiovascular disease (CVD) is a group of disorders affecting the cardiovascular system (heart, blood vessels). • CVD is the leading cause of death worldwide. • The Dietary Approach to Stop Hypertension (DASH) diet aims to normalize blood sugar and prevent hypertension and CVD. – The DASH diet is rich in fruits, vegetables, low-fat dairy, whole grains, poultry, fish, and nuts. – The DASH diet limits saturated fat, red meat, sweets, and sugary beverages.
Purpose â€˘ The purpose of this review was to explain: â€“ The effects of a DASH-style diet on the occurrence of CVD or its major subclasses; coronary heart disease, stroke, and heart failure, via performing a meta-analysis and summarizing the results.
Overview • Performed a search in PubMed, ISI Web of Science, Google Scholar, and EMBASE. • Longitudinal cohort studies examining the effects of a DASH-style diet on CVD, coronary heart disease (CHD), stroke, and heart failure (HF) were selected. • Cohort studies which included participants with CVD risk factors such as diabetes, metabolic syndrome, obesity or hypertension and shorter than five years were excluded.
Results of Search • Initial search retrieved 2,367 research papers. • Only six studies met inclusion criteria. – Three studies from the United States – Two studies from Sweden – One study from Italy
Key Findings • Results demonstrate a DASH-style diet can significantly reduce risk of heart disease. – Cardiovascular disease risk reduced by 20% – Coronary heart disease risk reduced by 21% – Stroke risk reduced by 19% – Heart failure risk reduced by 29%
Conclusions • Following a DASH-style diet can significantly lower the risk of developing CVD, the number one cause of death worldwide. • To view the DASH Diet log onto: http:// www.nhlbi.nih.gov/health/public/heart/hbp/dash/index.htm • Fitness professionals should learn the basics of the DASH diet and provide general guidance for their clients when discussing healthy eating habits.