Avocado and Mango Daily: The Surprising Secret to a Healthier Heart
New research shows eating avocado and mango daily improves blood vessel function and blood pressure in adults with prediabetes.
Could a simple addition of two delicious fruits to your daily diet be the key to protecting your heart? New research suggests that eating an avocado and a cup of mango every day may provide surprising avocado mango heart benefits, particularly for those navigating the challenges of prediabetes.
The study, published in the Journal of the American Heart Association and highlighted on the ScienceDaily website, followed adults with prediabetes over an eight-week period. The results indicate that this nutrient-dense combination can significantly enhance blood vessel function and lower blood pressure without requiring participants to cut calories or lose weight.
The Impact on Prediabetes
These findings are particularly critical given the scale of prediabetes in the United States, where approximately 98 million people—or one in three adults—live with elevated blood sugar levels that have not yet reached the threshold for type 2 diabetes. For this vulnerable population, managing cardiovascular risk is a top priority.
Researchers from the Illinois Institute of Technology (Illinois Tech) designed a specific eating plan known as the Avocado-Mango (AM) diet. Participants were asked to consume one medium Hass avocado and one cup of fresh mango daily. To ensure the results were tied to the nutrients in the fruits rather than just calorie intake, a control group followed a similar diet but replaced the fruits with carbohydrate-based foods of equivalent calories.
Boosting Blood Vessel Flexibility
One of the most striking discoveries involved the health of the endothelium—the thin layer of cells lining the interior of blood vessels that regulates circulation and artery width.
To measure this, scientists used a test called flow-mediated dilation (FMD), which tracks how well blood vessels expand during blood flow. The results were stark:
- The Avocado-Mango Group: Experienced a significant increase in FMD, reaching 6.7%.
- The Control Group: Saw a decline in FMD, dropping to 4.6%.
This suggests that the combination of these fruits helps blood vessels remain flexible and efficient, a primary marker of overall cardiovascular health.
Blood Pressure Breakthroughs
The study also monitored diastolic blood pressure—the pressure in the arteries when the heart rests between beats. High diastolic pressure can place dangerous strain on the heart and vascular system over time.
The improvements were especially notable among male participants. While men in the control group saw their central blood pressure increase by an average of 5 points (mmHg), those on the avocado and mango diet saw a reduction of approximately 1.9 points.
Nutrition Over Calories
Perhaps the most intriguing aspect of the study is that these heart-health gains occurred without any significant change in the participants' body weight or total calorie consumption. This indicates that the quality of the nutrients—rather than just the quantity of calories—is what drove the cardiovascular improvements.
“This research reinforces the power of food-first strategies to help reduce cardiovascular disease risk, particularly in vulnerable populations like those with prediabetes,” stated Britt Burton-Fre, one of the researchers involved in the study.
By incorporating these two nutrient-rich fruits into everyday meals, individuals may be able to support their heart health through a simple, sustainable dietary adjustment.