Bambusa vulgaris

What is Bambusa vulgaris?

Bambusa vulgaris is the common bamboo, a tall woody grass grown across the tropics. Healers in Africa, Asia and the Caribbean have long used its leaves, shoots and stems. The young shoots are also an everyday food.

Most folk use involves a tea or a wash made from the leaves. A hard white deposit from inside the stem, called tabasheer, is used in Ayurveda. Supplements sold today are mostly leaf or stem extracts rich in silica.

Here is the honest verdict. There are almost no human trials on bamboo for any health claim. Long use in tradition is not proof that it works, and it is not proof that it is safe.

One real hazard is worth knowing before anything else. Raw bamboo shoots contain a compound that can release cyanide, a poison. Shoots must be boiled in plenty of water before eating.

How does Bambusa vulgaris work?

No one has shown how bamboo works in people, because those studies have not been done.

Bamboo leaves and stems hold a lot of silica, a mineral form of silicon. Silicon takes part in how the body builds bone, skin and connective tissue. Whether silica from bamboo is taken up in a useful amount is not settled.

In test tubes, bamboo leaf extracts mop up free radicals and slow the growth of some bacteria. Whether that happens inside the body is unknown.

In rats, leaf extracts have lowered blood sugar and reduced swelling. Rat results often fail to repeat in people, so treat them as a hint and nothing more.

Raw shoots contain taxiphyllin, a cyanogenic glycoside. That is a plant compound that can release cyanide in the gut. Boiling in open water, with the water thrown away, destroys most of it.

Some animal work found changes in the liver and testes after high doses of leaf extract. This has not been measured in people, but it is a reason for care.

What forms does Bambusa vulgaris come in?

You will meet bamboo in a few different shapes.

Dried leaf, brewed as a tea or used as a skin wash.

Leaf or stem extract in capsules and tablets, usually sold as a silica supplement.

Tabasheer, a white powder taken from inside the stem joints, used in Ayurvedic mixes.

Fresh, canned or pickled shoots, sold as food in Asian and African markets.

Liquid extracts and tinctures, and bamboo silica in hair and nail formulas.

Canned and pickled shoots have already been processed and boiled. Fresh shoots have not, and need full cooking at home.

Where it comes from:

Bamboo has a long record in folk medicine across several regions. In traditional African medicine, leaf preparations were used for fevers, coughs and as washes for sores.

In Ayurveda, tabasheer was given for coughs, chest complaints and fever. Chinese and Southeast Asian healers used bamboo leaf and sap for heat, thirst and restlessness.

In parts of Africa, Asia and the Caribbean, leaf teas were also used to bring on a late period. That use is why pregnancy is a firm no today.

The shoots have been food for thousands of years. Cooks in every bamboo-eating culture learned to boil them first, long before anyone named the chemistry.

What does Bambusa vulgaris help with?

• Bone, hair, skin and nail support (silica): This is the main selling point of bamboo supplements today. The idea is that silicon helps the body build collagen and bone. Some small human studies on silicon from other sources hint at effects on bone and hair. Bamboo extract itself has not been tested this way in good human trials. Treat the claim as unproven.
• Joint aches: Folk use and modern marketing both link bamboo silica to stiff, sore joints. There is no human trial showing that bamboo eases joint pain. Animal and test tube work shows some anti-swelling activity, which is a long way from relief in a person.
• Coughs and chest complaints: Tabasheer and bamboo leaf teas were given for coughs, wheeze and chest heat in Ayurveda and Chinese practice. No controlled human study backs this. If a cough lasts more than three weeks, or you cough blood, see a doctor rather than self-treating.
• Fevers: Leaf decoctions were a common fever drink in African and Asian folk medicine. There is no human evidence that bamboo lowers fever. A fever with a stiff neck, rash or confusion needs urgent medical care, not a tea.
• Wounds and skin sores (washes): Leaf washes were applied to cuts, boils and skin sores in several traditions. In lab dishes, leaf extracts slow some bacteria and fungi. Whether that happens on human skin has not been shown. A spreading, hot or pus-filled wound needs a doctor.
• Blood sugar control: Leaf extracts have lowered blood sugar in rats in several studies. There is no solid human trial. If you take diabetes medicine, this is a reason for caution rather than hope, because the two could stack and push sugar too low.
• Menstrual complaints: Leaf teas were used in folk practice to bring on a delayed period. There is no human evidence that this works, and the same use flags a risk in pregnancy. Do not use bamboo for this purpose.

Which foods are rich in Bambusa vulgaris?

1. Cooked bamboo shoots, fresh
2. Canned bamboo shoots
3. Pickled bamboo shoots
4. Bamboo leaf tea

Practical Tips:

Bamboo shoots are a normal vegetable once cooked properly.

Boil fresh shoots in plenty of open water and throw the water away. Do not taste them raw, and do not eat them lightly stir-fried from raw.

Canned and pickled shoots have already been processed, so they are the safer buy.

What are the side effects of Bambusa vulgaris?

• Stomach upset or nausea
• Loose stools
• Mouth or throat irritation from raw or poorly cooked shoots
• Headache, dizziness, fast breathing or confusion after eating undercooked shoots
• Skin rash from leaf washes in people who react to grasses
• Possible thyroid effects with heavy, repeated raw shoot intake
• Low blood sugar if combined with diabetes medicine

Good to know:

For most people, cooked bamboo shoots are an ordinary vegetable and cause no trouble.

Mild stomach upset is the most common complaint from leaf teas and extracts.

The serious risk sits with raw or undercooked shoots. Cyanide symptoms are rare but real, and they are a medical emergency.

Because no long human studies exist, the effects of taking bamboo extract for months or years are simply unknown.

How much Bambusa vulgaris should you take?

• Recommended daily: This page gives no personal dose. What follows is only what labels tend to carry. Bamboo leaf or stem extract capsules often list 300 mg to 500 mg per serving. Many are sold as standardised to about 70% silica. Loose leaf tea labels often suggest 1 g to 2 g of dried leaf per cup. Cooked shoots are a food and are eaten as a vegetable portion. There is no tested dose for any health claim. More is not better, and animal work at high doses showed organ changes.
• Best time of day: Time of day does not matter for bamboo. There is no proven effect to time. Pick a slot you will remember. Leaf tea is often drunk in the evening, simply by habit.
• With or without food: Taking bamboo extract with food may cut the risk of stomach upset. Cooked shoots are food, so this does not apply to them. If you take thyroid medicine, keep it well away from any supplement and follow your pharmacist's timing advice.
• Time to effect: Be honest with yourself here: it may do nothing at all. No human trial has measured how fast bamboo acts, or whether it acts. Claims about hair and nails usually involve months, which is also how long normal growth takes. If a symptom is getting worse while you wait, stop and see a doctor.
• How long to take it: No safe or useful length of use has been set, because the human studies do not exist. Supplement labels often suggest short runs of a few weeks. That number comes from habit, not from research. If you are using bamboo for a symptom and nothing has changed in two to three weeks, stop and get the symptom looked at.