Link Between Fruit and Vegetable Intake and Type 2 Diabetes Risk

The Growing Diabetes Crisis

Diabetes is increasingly recognized as one of the most significant global health challenges of the 21st century. In Canada, statistics reveal that approximately one in three individuals is affected by diabetes or pre-diabetes, with type 2 diabetes emerging as one of the fastest-growing health issues in the nation. Nonetheless, adopting a healthy lifestyle can help prevent or delay the onset of type 2 diabetes.

The Role of Fruits and Vegetables

Research has suggested that a higher intake of fruits and vegetables may contribute to the prevention of type 2 diabetes; however, definitive evidence supporting this assertion has been limited. Previous studies often relied on food frequency questionnaires, which can introduce significant errors or biases. To address this gap, researchers conducted a comprehensive investigation across eight European countries to explore the relationship between fruit and vegetable consumption and type 2 diabetes.

Research Methodology

Published in the British Medical Journal, the study involved measuring vitamin C and carotenoids in the blood of over 23,000 participants from eight European nations over a span of 16 years. This data was collected from more than 9,000 patients who developed type 2 diabetes and over 13,000 participants from the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. Vitamin C and carotenoids serve as reliable biomarkers for fruit and vegetable intake, making blood plasma measurements more accurate than self-reported dietary assessments.

Key Findings

The results indicated an inverse relationship between fruit and vegetable consumption and the incidence of type 2 diabetes. Specifically, individuals with the highest intake of fruits and vegetables showed a lower prevalence of diabetes. Conversely, those consuming the least amount of these foods had the highest rates of type 2 diabetes. Notably, even a modest increase of one additional serving of fruits and vegetables per day was associated with a reduction in diabetes risk by approximately 30%.

Current Trends in Consumption

Over the past decade, fruit and vegetable consumption has declined, with less than 30% of Canadians meeting the recommended five servings per day. This study underscores the significance of increasing fruit and vegetable intake, showing that even one extra serving can yield positive health outcomes. It establishes a clear link between consuming more fruits and vegetables and reducing the risk of type 2 diabetes by as much as 50%.

Implications for Public Health

The high prevalence of type 2 diabetes in Canada accounts for 90-95% of diabetes diagnoses, with an alarming rise in cases among children. The complications associated with diabetes can be severe and include stroke, heart attack, kidney failure, and non-traumatic amputation. This study emphasizes that even a moderate increase in fruit and vegetable consumption can play a pivotal role in preventing type 2 diabetes, delivering a vital message about the importance of dietary habits in public health initiatives.

Conclusion

The findings from this research advocate for dietary changes that incorporate more fruits and vegetables, highlighting their potential to combat the growing diabetes epidemic.

References

DiabetesCanadaWebsite. 2020. Preventing Diabetes. [online] Available at: [Accessed 14 July 2020].
DiabetesCanadaWebsite. 2020. One in three Canadians is living with diabetes or prediabetes. [online] Available at: [Accessed 14 July 2020].
Global News. 2020. UBC Study Finds Canadian Fruit And Vegetable Consumption Down By 13 Per Cent. [online] Available at: [Accessed 14 July 2020].
Houlden, R., 2018. Introduction. Canadian Journal of Diabetes, 42, pp.S1-S5.
Statista. 2020. Canadians Fruit And Vegetable Consumption Per Day Percent 2003-2017 | Statista. [online] Available at: [Accessed 14 July 2020].
Zheng, J., Sharp, S., Imamura, F., et al., 2020. Association of plasma biomarkers of fruit and vegetable intake with incident type 2 diabetes: EPIC-InterAct case-cohort study in eight European countries. BMJ, p.m2194.