Goji Berry (Gou Qi Zi) Benefits: The Everyday Tonic for Eyes, Blood and Kidneys

Written and reviewed by Dr. Michael Koh, Chinese herbal medicine practitioner at The Oriental Herb, Cliffside Park, NJ

Long before goji berries were a smoothie-bowl topping they were Gou Qi Zi, one of the most used tonic herbs in Chinese medicine – mild enough to eat daily, gentle enough for the elderly and children, and found in dozens of classical formulas for the eyes, the Blood and the Kidneys. This post explains the goji berry benefits as a herbalist understands them, what the research adds, and how to actually use them rather than sprinkle them on things. We stock good-quality Ningxia goji in our Cliffside Park store.

What Gou Qi Zi does in Chinese medicine

Goji nourishes Liver and Kidney Yin and Blood and brightens the eyes. In practice it is used for: dry, tired or blurred eyes and night-vision problems (the classic use – see Chinese herbs for eye health); dizziness, tinnitus and low back ache of the Kidney-deficient type; dryness, pale complexion and poor sleep of Blood deficiency; premature graying; low libido and fertility in both sexes (see fertility); and general support in older adults. It is sweet and neutral – neither heating nor cooling – which is why it suits almost everyone.

Classical formulas it anchors

Qi Ju Di Huang Wan – goji and chrysanthemum added to the Kidney formula Liu Wei Di Huang Wan, for dry eyes, blurred vision and dizziness; the single most prescribed eye formula. Wu Zi Yan Zong Wan – the “five seeds” formula for male fertility and libido. Yi Guan Jian – for Liver Yin deficiency with chest and rib discomfort.

What the research says

Goji is rich in zeaxanthin, which concentrates in the retina; small trials have found increased macular pigment in older adults who ate goji daily – a plausible mechanism for the traditional eye use. Its polysaccharides have been studied for immune markers, fatigue and well-being with modestly positive results, and animal work suggests effects on blood sugar and lipids. None of this makes it a medicine on its own; it makes it a reasonable daily food with a sensible rationale.

How to take goji

• As a tea – a tablespoon of berries steeped in hot water with chrysanthemum flowers; drink the tea and eat the berries. The classic office tea in China for screen-tired eyes.
• In congee or soup – added in the last ten minutes of cooking to rice porridge, chicken soup or bone broth; this is how most families use it.
• Plain – 10–20 g (a small handful) a day, soaked briefly. More is not better.
• In a formula – with the matching herbs for your pattern, which is where it does its real work.

Who should limit it

Goji is mildly warming in large amounts; people with an acute fever, a cold with heat signs, or very loose stools from weak digestion should pause it. It can add to the effect of warfarin and of diabetes and blood pressure medication – a daily handful is fine for most people on these drugs, but tell your doctor. Buy from a source that tests for pesticides and sulphur; cheap goji is often treated.

FAQ

Are goji berries good for the eyes?

Dry, tired and aging eyes, yes, consistently and gently over months. They do not treat eye disease, and sudden vision changes need an ophthalmologist.

Do they help with sleep?

In the Blood-deficient pattern – waking with dreams, a pale face – yes, as part of a formula. Not as a sedative.

Dried or juice?

Dried berries; most goji juices are diluted and sweetened.

This article is for educational purposes only and is not medical advice. Chinese herbs are not a replacement for diagnosis or treatment from your physician. Always tell your doctor and your herbalist about every medication and supplement you take.