Wheat Berry, Black Bean and Polygonum Vine Soup

Why people make this soup

We all know the feeling — the mind is running even when the body is tired, sleep is fragmented, and the next morning arrives before you feel ready. For many people, this kind of restless, anxious poor sleep — especially when accompanied by forgetfulness and mental fatigue — is a sign that the body’s resources have been stretched thin.

In traditional Cantonese food therapy, this pattern is often described as the heart and kidney “not communicating” — a state where the settling, cooling energy of the kidneys is not adequately nourishing the active, warming energy of the heart, leading to an unsettled mind. This soup aims to address that imbalance gently, nourishing both systems and giving the nervous system a chance to ease down.

Wheat berries are much more than flour — the whole grain contains the components that food therapists have valued for centuries for their calming action. Black beans nourish the kidneys. And the vine stem of the Polygonum plant has a different and gentler role than the root (which is primarily for liver-kidney tonification) — the vine is associated with calming the spirit and is used specifically for sleep support.

Method

1. Rinse wheat berries, black beans, jujubes, and polygonum vine thoroughly.
2. Combine all ingredients (except the sugar) in a pot with 1.8 L of water.
3. Bring to a boil over high heat, then reduce to a gentle simmer.
4. Cook for about 1.5 hours, until reduced to approximately 600 ml.
5. Add slab sugar and stir until dissolved.
6. Take one serving as a daily dose. Drink one bowl in the morning and one bowl in the afternoon or early evening. Make a fresh batch each day and continue for one week.

Nourilo’s Tips

Wheat berry (xiao mai mi) is the whole wheat seed — in English it is sometimes labelled “wheat berry” or “wheat grain.” It is different from processed wheat or oats. The polygonum vine stem is the part of the plant used for sleep — not the same as the root (he shou wu), which has a different function. If you cannot find polygonum vine, Nourilo suggests substituting dried jujube kernel (suan zao ren) at 11 g, or lily bulb (bai he) at 38 g — both are associated with supporting sleep. This soup is particularly helpful for students under exam pressure and for those whose minds stay active even when they are physically tired.