Dandelion Root Benefits (Taraxacum officinale) These are true (except I have not found confirmation about blood pressure, which depends largely on the cause of it, to determine what helps anyway. What helps with one cause may not help with another.) Tea, though, is part of the help. Cook it like boiling carrots but change the water once. Eat the whole herb, leaves& flowers too, cutting it off as deep as a knife will go. Beware of herbicides and pesticides. Get rid of flower stem - bitter.