Fruit smoothies are often considered a healthy way to consume essential nutrients. However, a recent study reveals that ...

It comes down to something called polyphenol oxidase, explains Keri Gans, RDN, host of The Keri Report podcast. This is the enzyme that’s thought to make bananas turn brown when they’re ...

As this herb is cut or crushed and exposed to oxygen, an enzyme called polyphenol oxidase, which is naturally found in the ...