I have written this for educational purposes. If in doubt don’t, make certain you know your plants. This is not medical advice and should not be taken as such.
Has antioxidants, contains berberine which is known to fight many pathogens. Reduces oxidative stress, inflammation and oxLDL. Has been shown to fight cancer. When I was a kid and I would get ill I would crave the leaves from this plant although it is the berry that is used. When the leaves get red they get very bitter. It has even been shown to help with acne. Has been shown to help with fibrosis.
The bush is invasive and is not native to the US. It can spread and cause problems. I try and isolate my bush and get the berries before the birds to prevent it from spreading. I had to move my bush so I just ripped it out and gathered a few small ones to replant. They are the ones you see in the pictures.