There’s a growing body of research highlighting the health benefits of onions. Studies have shown that onions contain compounds with anti-inflammatory, antioxidant, and immune-supporting properties—making them a wonderful addition to a healthy, balanced diet.

From a Yakuzen perspective, onions do more than just enhance flavor. Their warming nature and pungent-sweet taste make them especially helpful in promoting the smooth flow of Qi (vital energy) and dispelling stagnation.

Qi stagnation, often caused by stress, poor eating habits, or emotional strain, can lead to symptoms like bloating, indigestion, fatigue, poor appetite, and a heavy sensation in the stomach. Onions help stimulate the digestive organs—especially the spleen and stomach—which play central roles in producing Qi and transporting nutrients throughout the body. When these organs are functioning well, your energy levels and digestion naturally improve.

They are also believed to help disperse cold, induce mild sweating, and support yang energy, making onions beneficial for those with cold constitutions or who are sensitive to chilly environments.

For those with Qi deficiency, onions pair beautifully with Qi-replenishing foods like potatoes, rice, and chicken, helping to gently warm the body, improve circulation, and relieve digestive discomfort.

Yakuzen Classifications
Nature – Warm（温）
Channels – Spleen (脾), Stomach (胃), Lung (肺), Heart (心)
Flavor – Pungent (辛), Sweet (甘)

How do onions help you?

1. Improve spleen functions and promote Qi flow
2. Regulate stomach functions and improve digestion
3. Induce sweating and promote yang energy flow
4. Detox
5. Lower blood pressure

Good for the following symptoms

1. Poor appetite
2. Bloating stomach
3. Indigestion
4. Diarrhea
5. Burping
6. Nausea
7. Heavy stomach
8. Sensitivity to cold

Japanese home dishes with onion

1. Tamanegi no Okaka Ae (Onion salad with bonito flakes)
   Benefits - Nourish Qi and blood / Improve Qi and blood flow / Help kidney functions and increase kidney essence (jing).

Main ingredients
Onion, bonito flakes, vinegar, sugar, soy sauce, lemon juice

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Cautions

It's very important to know about your body conditions before choosing foods.
Do not eat too much of particular foods at once.
Do not eat the foods you are allergic to.
There are foods to avoid if you are pregnant / have a disease. Ask your doctor before you start Yakuzen.