Is Broccoli Good for Your Heart?

Previous Research on Cruciferous Vegetables

Studies have indicated that a high consumption of cruciferous vegetables, including broccoli, cauliflower, and Brussels sprouts, is linked to a reduction in carotid artery thickness. This association suggests a lower risk of cardiovascular disease and mortality.

New Study Insights

A recent study conducted by researchers in Australia and the United States, published in the British Journal of Nutrition, further explores the relationship between cruciferous vegetables and heart health. The study involved older women who were originally part of a randomized controlled trial focused on calcium supplementation and osteoporotic fractures. Women with a history of cardiovascular diseases or those taking medications that influence bone metabolism were excluded from the study.

Methodology

Participants self-reported their dietary intake through a questionnaire that assessed their usual food consumption, including portion sizes. To evaluate health, the women underwent imaging to assess abdominal aortic calcification (AAC), which refers to the calcification of the aortic blood vessel located in the abdomen.

Key Findings on Broccoli and Calcium Build-up

The study revealed that a higher intake of cruciferous vegetables correlates with a decreased risk of extensive abdominal aortic calcification, even after adjusting for various risk factors. Women consuming more than 45 grams of cruciferous vegetables daily—equivalent to half a cup of steamed broccoli—exhibited a 46% lower likelihood of experiencing significant calcium build-up in their aortic blood vessels compared to those who consumed minimal amounts.

The Role of Bioactive Compounds

Beyond reducing the thickening of blood vessel walls as demonstrated in earlier studies, this research emphasizes the role of cruciferous vegetables in managing calcium accumulation in blood vessels. This regulation is vital in preventing the calcification that can lead to cardiovascular disease. The observed cardiovascular benefits may stem from the diverse bioactive compounds found in cruciferous vegetables, including flavonols, pectin, and vitamin K.

Importance of the Study

This study underscores the significance of a vegetable-rich diet, particularly one high in options like broccoli, and its positive effects on heart health. It also opens avenues for further research to deepen the understanding of the mechanisms through which cruciferous vegetables, such as broccoli, confer protective benefits for cardiovascular health.

References

Blekkenhorst, L. C., Sim, M., Radavelli-Bagatini, S., Bondonno, N. P., Bondonno, C. P., Devine, A., . . . Lewis, J. R. (2020). Cruciferous vegetable intake is inversely associated with extensive abdominal aortic calcification in elderly women: A cross-sectional study. British Journal of Nutrition, 1-9. doi:10.1017/s0007114520002706

Broccoli and Brussels sprouts a cut above for blood vessel health. (2020, August 20). Retrieved August 25, 2020, from https://www.eurekalert.org/pub_releases/2020-08/ecu-bab081920.php