This is not medical advice and should not be taken as such. I have posted this for informational and educational purposes. Know your plants if in doubt don’t . Some parts of plants are edible while other parts can be lethal.
There are many species of yellow dock but the one most are familiar with is R. Obtusifolius. It has many benefits from detoxing, providing much needed nutrients especially minerals. The young shouts and leaves can be eaten but become high oxalate when they get older especially when the stems start turning red. Oxalates can cause severe damage in the body and even death. It is why I mainly use the root and only eat the stems once in a while when they are very young. Young first years roots taste good cooked in butter they have kind of a nutty flavor. When they get older they get tough and bitter. I use second year roots to make tea. So separate the seeds from the husk and use them to make flour. I have not been successful with that. I did see a video on Youtube were a young man used a food processor with a dough mixing blade on it to separate them and then put them on a tray an place a fan by them to blow the husk away and it seemed to work pretty well. The health benefits of the root is pretty astounding to me. There are other types of dock with similar benefits but in my area Yellow Dock is the most common. Most Docks have cross bread and share the similar benefits. R. Obtusifolius or very common and have cross bread so much you can barely tell them apart.
The leaves are so high in oxalates eating them can be fatal.
The seeds have antifungal properties.
It is a good source of antioxidants.
Helps with just about every illness it is even good for detoxing.
Since most Yellow Dock has cross bread with Curly Dock I am going to include studies on it.
Has renal protective effects.
Contains nepodin which helps with diabetes
Protects DNA and fights cancer.
The fruit protects from oxidative stress.
The root prevents bone loss so would help with osteoporosis.