yeah, i grow comfrey and several other herbs at teh Pond. Umm, herbalism is something i been into for awhile but i took a class last fall that really help spring board me into it and also helping other... Some may say I could be a shaman but i always tell them, I'm SHU MAN!!
Yeah, If you drink it everyday the alkaloid will build up in your liver and can cause damage, this is true. That is why i only drink 16 oz of it every other day and in between i use drink so sort of Diaretic tea that helps detox the body, Dandelion tea is what I usually drink.
Also, you may want to look into comfrey infusions, Comfrey is a crazy herb known for healing bone, ligaments and tendons injuries!! Actually, there is a lot of controversey about it in the Herbalism field(Can cure cancer). If your interested, you can purchase the herb at mountain rose herbs online. Good stuff i drink it every other day!!! Hit me up if you want more info and any other herbal goodness advice.