Amphoteric

A normaliser. An herb which harmonizes and normalizes the function of an organ or body system, balancing to two seemingly contradictory conditions such as diarrhea and constipation, or high and low blood pressure for example. An herb which acts in two seemingly different ways, to bring about balance to the body. Many herbal medicines work to normalize and balance optimal organ functioning, bringing an excess or a depletion state back into balance.

Chickweed is amphoteric to the thyroid

David Winston writes:

An amphoteric is a substance that normalizes function of an organ or a system within the body. I think of amphoterics as “food for an organ”. Examples include Hawthorn for the cardiovascular system, Fresh Milky Oat for the nervous system, or Helonias for the female reproductive system. All of these herbs are amphoteric, but none of them qualify as adaptogens.