Can Nighttime Avocado Snack Improve Heart Health? New Study Says Yes
Findings from a newly published randomized controlled trial in the Journal of Nutrition reveal that snacking on avocado before bed may help improve triglyceride metabolism the next morning, a key factor in cardiovascular health. The study highlights the benefits of eating avocado as a nighttime snack, particularly for adults with prediabetes a condition affecting one in three adults and linked to increased heart disease risk.
The research is based on the “second-meal effect,” which suggests that the nutritional content of a previous meal can impact the body’s response to the next one. This study investigated how different nighttime snacks influenced metabolic markers in adults with prediabetes, with a particular focus on triglycerides the most common type of fat in the body and a known indicator of insulin resistance.
The trial involved 27 adults with prediabetes, who were given three different calorie-matched snacks on separate evenings: one whole avocado (rich in fiber and unsaturated fats), a low-fat, low-fiber snack, and a processed snack engineered to match the avocado’s fat and fiber content. Participants consumed the snacks between 8:00 and 9:00 p.m., then fasted overnight. The next morning, after a standardized breakfast, blood samples were collected to measure triglycerides, glucose, insulin, and inflammation markers.
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