Jim Grove, aged 67, has a deep fondness for blueberries, and this affection is quite beneficial as he is currently committed to consuming a cup of blueberries daily for the next year. “I’ve already eaten around 35 pounds of blueberries since the beginning,” he mentioned while preparing another blueberry smoothie at his residence in Halifax.
Grove recently participated in a series of physical evaluations and inquiries during a medical appointment. This session involved various tests, including assessing his ability to handle personal banking tasks, perform calculations in reverse, and name as many animals as possible within a minute. Following the assessments, a research coordinator presented Grove with a sizable box of frozen Nova Scotia wild blueberries, exclaiming, “Here are your blueberries for the next two weeks.”
He is currently engaged in a research initiative led by Dalhousie University’s Faculty of Medicine. The study aims to determine if a combination of daily blueberry consumption, 30 grams of protein powder intake, and personalized exercise routines three times per week can enhance frailty and heart health among older individuals. The researchers aspire that positive outcomes from this study will support the endorsement of blueberries as a prescribed treatment by doctors.
This study aligns with the emerging trend of food prescribing in Canada. This approach involves physicians identifying patients at risk of diet-related chronic illnesses and food insecurity, issuing prescriptions for fresh, healthy foods to provide access to subsidized or complimentary nutritious options. Leah Cahill, a registered dietitian and the principal investigator of the study named STRONG, emphasizes the importance of prescribing lifestyle modifications to prevent illness rather than just treating existing conditions.
The research team is actively seeking additional participants for their clinical trial, which will encompass 240 individuals aged 65 and above. Half of the participants will consume antioxidant-rich blueberries daily, while the other half will follow their regular diets. Regular assessments will be conducted every three months for a year, followed by another assessment a year later.
Funded by a $1-million grant from the River Philip Foundation based in Nova Scotia, the study aims to advance transformative medical research focusing on enhancing health outcomes. Cahill emphasizes the critical link between frailty and heart health, noting that cardiovascular disease poses a significant threat to Canadians and is exacerbated by frailty. The study’s goal is to promote strength and vitality among older individuals.
In a broader context, the concept of food prescribing is rapidly gaining momentum in Canada. A recent commentary article in a scientific journal highlighted the benefits of food prescribing in improving dietary habits and addressing both food insecurity and chronic disease management simultaneously. However, further research is necessary to evaluate the effectiveness and cost-efficiency compared to other healthcare and social welfare programs.
Matthew Little, an associate professor at the University of Victoria and lead author of the article, suggests that food prescribing often involves connecting individuals with existing community services to address their nutritional needs. While prescriptions offer a structured approach to nutrition, there are concerns about the potential paternalistic nature of this practice and whether alternative methods like providing financial support might be more dignified.
Although food prescribing initiatives are currently localized in Canada, mainly in Alberta and Ontario, efforts are underway to expand these programs nationwide. In Guelph, Ontario, clinicians at the Community Health Centre have been prescribing fresh food as part of their patients’ treatment plans since 2019. The program has demonstrated significant reductions in food insecurity and improvements in health markers related to diabetes and heart disease among participants.
Looking ahead, advocates of food prescribing envision its integration into standard primary care practices. Melissa Kwiatkowski, the CEO of the Community Health Centre in Guelph, underscores the need for sustainable funding to support such initiatives and has proposed a budget allocation to launch a provincial food prescription program in Ontario.
The success of food prescribing programs hinges on rigorous research and evaluation of their impact on public health. More studies, like the one conducted at Dalhousie University, are essential to assess the scalability and effectiveness of these interventions across diverse populations. Grove, who has experienced notable improvements in his health since participating in the study, emphasizes the importance of preventive measures for long-term well-being.
As the STRONG study progresses, Grove remains optimistic about the positive impact of his new routine involving daily blueberry consumption and regular exercise. He believes that these lifestyle changes will not only benefit him now but also contribute to his overall health and vitality in the future.
