By "root" products he means Dandelion Root, Ginger Root, Tumeric Root, and Burdock Root; all strong detoxifiers.

My local juice place makes a green blend called Liver Cure with Celery, Cucumber Dandelion. and burdock. It's great!

Teas are the easiest way to enjoy detoxing roots and are easy to find on-line or in health food stores.

I often just toss a bag in my glass of drinking water cold or at room temperature- no fuss.