Discover the transformative power of nutrition in cardiac rehabilitation as we delve into the latest evidence on how dietary patterns can significantly influence cardiovascular risk factors in patients with existing heart conditions.
– by James
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Diet in secondary prevention: the effect of dietary patterns on cardiovascular risk factors in patients with cardiovascular disease: a systematic review and network meta-analysis.
Bonekamp et al., Nutr J 2024
<!– DOI: 10.1186/s12937-024-00922-8 //–>
https://doi.org/10.1186/s12937-024-00922-8
Summary of Findings:
This network meta-analysis aimed to determine the most effective dietary patterns for reducing cardiovascular risk factors in patients with established cardiovascular disease (CVD). The analysis included 17 randomized controlled trials (RCTs) with a total of 6,331 participants. The diets compared were Mediterranean, moderate carbohydrate, low glycemic index, low-fat, and minimal dietary intervention.
The moderate carbohydrate diet showed the most significant benefit in reducing body weight by an average of -4.6 kg and systolic blood pressure by -7.0 mmHg when compared to minimal intervention. However, no diet significantly improved low-density lipoprotein cholesterol levels. The beneficial effects were more pronounced at < 6 months and tended to diminish after 12 months.
Importance:
This study is important as it provides evidence on the short-term benefits of certain dietary patterns for secondary CVD prevention. However, it also highlights the challenges in determining the long-term efficacy due to factors like study heterogeneity, low adherence, and the influence of medical treatments.
Contribution to Literature:
The research contributes to the current literature by comparing popular dietary interventions and their impact on cardiovascular risk factors in a CVD population. It suggests that while dietary changes can have significant short-term benefits, identifying an optimal long-term dietary pattern for secondary CVD prevention remains uncertain.