Burdock root or Flaxseeds

Burdock root is a vegetable popular in Japan that has been shown to provide health advantages. It has 1.8 grams of fiber per 100 grams (3.5 ounces). Burdock root contains inulin and FOS, which promote the growth of beneficial bacteria in the digestive tract. Burdock root includes phenolic chemicals, which contribute to its antioxidant qualities.

Flaxseeds are quite nutritious. They are also an excellent source of prebiotics. Flaxseed fiber boosts healthy gut bacteria, promotes regular bowel movements, and lowers the amount of dietary fat you digest and absorb. Flaxseeds have anticancer and antioxidant qualities, as well as the ability to control blood sugar levels, due to the presence of phenolic antioxidants.