Five universities worked together to conduct the largest and longest avocado research study.

According to recent research, eating one avocado every day for six months had no impact on waist circumference, belly fat, or liver fat in those who were overweight or obese. It did, however, cause unhealthy cholesterol levels to slightly decline.

The team, which included Penn State researchers, also discovered that participants who consumed avocados had higher-quality diets throughout the study.

This was the largest and most thorough study to date on the health effects of avocados, including a large number of participants and the length of the study period. While earlier, smaller studies have found a link between eating avocados and lower body weight, BMI, and waist circumferences, this one involved a much larger population.

“While the avocados did not affect belly fat or weight gain, the study still provides evidence that avocados can be a beneficial addition to a well-balanced diet,” said Penny Kris-Etherton, Evan Pugh University Professor of Nutritional Sciences at Penn State. “Incorporating an avocado per day in this study did not cause weight gain and also caused a slight decrease in LDL cholesterol, which are all important findings for better health.”

According to Kristina Petersen, an associate professor of nutritional sciences at Texas Tech University, eating avocados regularly improved the participants’ diets’ overall quality by eight points on a scale of 100.