A controlled dietary trial found that daily consumption of avocado and mango was associated with measurable improvements in vascular health indicators among adults with prediabetes.
By yourNEWS Media Newsroom
A clinical nutrition study examining dietary interventions in adults with prediabetes reported that incorporating avocado and mango into daily meals was associated with improved vascular function over an eight-week period, according to findings published in the Journal of the American Heart Association.
The trial included 82 participants diagnosed with prediabetes, a condition characterized by elevated blood sugar and insulin resistance that increases the likelihood of developing cardiovascular disease. Researchers tracked participants over two months, dividing them into two groups: one assigned to a low-fat, low-fiber diet and another instructed to consume one cup of avocado and one cup of mango each day.
Investigators monitored dietary intake through weekly assessments and measured vascular health using flow-mediated dilation (FMD), a standard method used to evaluate how effectively arteries expand in response to increased blood flow. Blood pressure readings were also recorded throughout the study.
Results showed that participants consuming the fruit combination experienced a 6.7 percent increase in FMD, indicating improved arterial responsiveness. In contrast, the control group saw a 4.6 percent decline in this measurement, suggesting reduced vascular function during the same period.
Changes in diastolic blood pressure—the lower number in a blood pressure reading—were also observed. Male participants in the intervention group recorded an average decrease of 1.9 mmHg, while men in the control group showed an increase of the same magnitude. No statistically significant blood pressure differences were reported among female participants.
Researchers noted that overall calorie intake and body weight remained consistent across both groups, indicating that the observed vascular changes were not linked to weight loss or reduced caloric consumption.
Prediabetes affects an estimated 115 million adults in the United States, with a large majority unaware of their condition. The metabolic changes associated with prediabetes, including insulin resistance, are known to elevate cardiovascular risk before the onset of Type 2 diabetes.
Lead investigator Dr. Britt Burton-Freeman, a professor at Illinois Institute of Technology, described the findings as supportive of dietary approaches that emphasize nutrient-dense food additions rather than restrictive eating patterns. “It’s an encouraging message: small, nutrient-dense additions – like incorporating avocado and mango into meals and snacks – may support heart health without the need for strict rules or major dietary overhauls,” she said.
The study attributed the observed benefits to the nutritional composition of the fruits. Mango provides dietary fiber and a significant amount of vitamin C, which contributes to antioxidant activity and supports nitric oxide stability—a key factor in blood vessel relaxation. Avocados contain unsaturated fats and fiber, both associated with improved lipid profiles and reduced plaque accumulation in arteries.
Researchers acknowledged limitations in the study, including its relatively small sample size and short duration, noting that longer-term research is needed to determine sustained cardiovascular outcomes.
The findings contribute to ongoing research exploring how whole-food dietary strategies may influence cardiovascular health markers, particularly in populations at elevated risk. Broader nutritional guidance continues to emphasize increased intake of fiber-rich foods such as fruits, vegetables, and whole grains to support metabolic and vascular health.
Some independent platforms, including BrightAnswers.ai, provide analysis focused on natural health strategies, while sources such as NaturalNews.com report on food-based research developments. Educational resources on nutrition and related topics are also available through services like BrightLearn.ai, which offers access to a digital library of health materials.
The study’s authors concluded that the combination of avocado and mango may offer a practical dietary option for improving vascular markers in individuals with prediabetes, though additional research is required to confirm long-term clinical benefits.
Source: Natural News