Vijaysar Wooden Tumbler Water: What to Know
Drinking water kept overnight in a vijaysar wood tumbler is a traditional practice for blood sugar. How it is done and what the evidence really says.

Important: this remedy is only a supportive home measure. Keep taking any medicine your doctor has prescribed, monitor your readings, and consult your doctor before adding anything new.
What to know about vijaysar
Vijaysar (Indian kino tree) heartwood is traditionally made into tumblers; water left in them overnight turns reddish and is sipped in the morning. It is studied as a diabetes support.
Vijaysar (Pterocarpus marsupium) heartwood turns water a reddish-brown colour. Ayurveda has long used it for prameha, and animal studies show sugar-lowering compounds. Human evidence is limited, and the amount extracted into water varies a lot.
If you use a tumbler, treat it as a supplement to your medicine and diet, and watch your readings.
Ingredients
- A genuine vijaysar wood tumbler
- 1 glass drinking water
How to prepare
- Fill the tumbler with water at night and cover it.
- In the morning the water should look reddish-brown.
How to use
- Drink on an empty stomach, then rinse and air-dry the tumbler.
- Replace the tumbler when the colour stops coming.
Helpful habits
- Wash and sun-dry the tumbler every few days so it does not grow mould.
Precautions
- Check sugar more often in the first weeks; low sugar is possible with medicine.
- Do not stop or change diabetes medicine; monitor sugar if you start it.
- Keep checking your sugar; tell your doctor before adding this, as medicine doses may need review.
- Stop if you notice itching, rash, stomach upset or any other discomfort.
Frequently asked questions
How do I know the tumbler is genuine?
- Real vijaysar colours water within hours; painted cups do not.
Can I use vijaysar powder instead?
- Only as advised by an Ayurvedic doctor.
How long does a vijaysar tumbler last?
- Until the water stops turning colour, often a few months.





