The Surprising Reason to Skip the Banana in Your Smoothies

New research from the University of California, Davis, suggests that adding a banana to smoothies can reduce the absorption of heart-healthy flavanols due to the enzyme polyphenol oxidase (PPO) present in bananas. The study recommends choosing fruits with low PPO activity, such as pineapple or oranges, to optimize flavanol absorption. The research highlights the importance of food preparation and combinations in maximizing the health benefits of fruit smoothies.