Researchers have found that the enzyme polyphenol oxidase (PPO) in certain fruits like bananas can reduce the absorption of heart-healthy flavanols, especially when combined with flavanol-rich ingredients like berries. The study suggests choosing ingredients with low PPO activity, such as pineapple or oranges, when making smoothies to optimize flavanol absorption.
i think many people have this idea that healthy food somehow has to be boring and flavourless, and that if you make it in any way enjoyable it for some reason automatically becomes unhealthy.
Which is insane and a terrible idea to spread, at this point i think healthy food tastes better.