Digestive Health: Understanding Yang, Qi and Yin-deficiency in TCM

Kit Li

Do you pay attention to your bowel movements? The regularity, shape, consistency, and even the smell of your stool can reveal a great deal about your overall health.

Have you ever experienced a cold sensation in your abdomen, irregular bowel movements, or difficulty passing stools? Many people immediately assume they are dealing with Constipation. As a result, they often believe the issue is simply due to a lack of fibre and turn to strong laxatives for relief.

However, this assumption can be misleading. While laxatives may provide short-term relief, long-term use can sometimes worsen the condition rather than resolve the underlying imbalance.

From the perspective of TCM, this may not be true constipation; instead, it can be a condition known as Yang-deficiency, as well as weak bowel movement due to Qi-deficiency. This is very different from the dry, hard constipation associated with Yin-deficiency. In addition, you might notice other symptoms such as poor appetite, fatigue, and cold hands and feet.

1) Yang-deficiency

For the condition of Yang-deficiency, it is important to avoid cold and raw foods, iced drinks, and cold natured fruits such as watermelon and pears. These should be eaten sparingly or avoided altogether. Instead, consuming warm and nourishing foods like fresh ginger, lamb, and longan..etc, can help support the body’s Yang energy. Practices such as soaking the feet in warm water for 15 minutes before bedtime can also assist in warming the body and dispersing cold, helping to prevent the worsening of Yang-deficiency.

2) Qi-deficiency

Qi is the body’s vital energy that powers many physiological functions, including the movement of the intestines. When Qi is insufficient, especially Spleen-Qi or Lung-Qi: the body may lack the strength to move the bowels effectively. As a result, bowel movements become difficult not because the stool is too dry, but because the body does not have enough energy to expel it.

In TCM, the Spleen and Stomach are considered the source of Qi and Blood. When Qi is deficient, the body may not generate enough energy or Blood to support normal physiological functions. Consequently, the intestines lose their strength to move stool efficiently. The stool may remain in the intestines for too long, causing excessive water absorption. At the same time, because Qi-deficiency weakens the body’s ability to properly form the stool, it may become thin, long, and soft.

For Qi deficiency, eat warm, cooked foods like congee, soups, stews, root vegetables, whole grains, and gentle proteins such as eggs, chicken, or lamb. Use warming spices like ginger and cinnamon, avoid cold, raw, or iced foods, greasy or processed foods, and overeating. Eat smaller, regular meals and drink warm water or herbal teas to support digestion and regular bowel movements.

3) Yin-deficiency

Stools can become dry and hard like small pellets, making it very difficult to pass them. Drinking lots of water often doesn’t help, and in severe cases, it can cause pain or bleeding.

Many people try to drink more water or take laxatives, but this often doesn’t work and can even cause diarrhoea or stomach pain. This type of constipation is usually caused by Yin-deficiency and a lack of body fluids, not just dehydration.

When there is internal heat due to deficiency in the body, it can cause irritability and insomnia, also bitter taste in the mouth.  At this point, simply drinking water is not enough; it is necessary to nourish the body’s fluids  at the root and clear the deficient heat to restore balance.

TCM focuses on nourishing Yin, replenishing fluids, and calming internal heat. Foods that are naturally moistening and slightly cooling, such as soups, congee, tofu..etc, that help restore fluid balance.  Also, avoiding very spicy, greasy, fried, or overly heating foods, as well as alcohol and excessive red meat, which can aggravate Yin deficiency and internal heat.

Apple, Dangshen (1) and Maimendong (1)Tea

This combination can help balance bowel movements, but it works more by regulating and restoring than forcing, it also makes stools softer (not loose), support more regular timing, reduce strain without irritating the gut.

Ingredientes:

• 1 apple (sliced)
• 6 - 10g Dangshen
• 6 - 10g Maimendong
• 500 - 700ml water

Simmer for about 30 minutes. Drink warm.

How it helps:

• Apple - gently promotes movement and adds moisture
• Dangshen (Codonopsis) - support Qi and digestion
• Maimendong (Ophiopogon) - nourishes Yin and body fluids, moistens dryness in the intestines

This tea is ideal for:

• Irregular but not severe constipation
• Dry or slightly hard stools
• Low energy digestion (you feel sluggish after eating)

But not suitable for:

• Very loose stools or diarrhoea
• Strong bloating with heaviness (dampness)
• Sharp abdominal pain or severe constipation

Conclusion:

What may appear to be simple constipation can, in fact, reflect deeper imbalances such as Qi, Yang, or Yin deficiency. Rather than relying on quick fixes, taking a more holistic approach, through appropriate diet, gentle lifestyle adjustments, and, when needed, tailored herbal support, can help address the root cause. By restoring balance within the body, you not only improve digestion but also enhance overall energy, resilience, and well-being, allowing you to move into the season feeling lighter, stronger, and more in harmony with your body.

Reference:

1) Tonic Herbs and Herbal Mixtures in Chinese Herbal Medicine: https://journals.lww.com/wtcm/fulltext/2016/02010/tonic_herbs_and_herbal_mixtures_in_chinese.3.aspx