espinheira-santa

What is espinheira-santa?

Espinheira-santa is a shrub from southern Brazil, Paraguay, Uruguay and Argentina. Its leaves are spiny, like holly, which is why it is called Brazilian holly. The dried leaves are brewed as a tea for stomach complaints.

In Brazil it is one of the best known stomach herbs. People use it for heartburn, for gastritis (an inflamed stomach lining) and for ulcer pain. Brazil's health service lists it among its approved herbal medicines.

The honest verdict on evidence is mixed. Lab and animal work looks promising, but human trials are few, small and dated. Long traditional use is not proof that it works, and it is not proof that it is safe.

How does espinheira-santa work?

No one has shown how espinheira-santa works in the human stomach.

In animal studies, leaf extracts lowered acid output. In rats, they cut stomach damage caused by alcohol and by anti-inflammatory painkillers.

In test tube work, the leaf slows Helicobacter pylori. That is a germ linked to ulcers. Whether this happens inside a person is not established.

The leaf is rich in tannins. These may form a thin coat over sore tissue. The idea is plausible, but it has not been shown in people.

So the lab picture is encouraging and the human picture is thin. Any relief you feel may also be the natural ebb and flow of stomach symptoms.

What forms does espinheira-santa come in?

Dried leaf tea is the most common form.

You will find it sold as: - Loose dried leaf and tea bags - Capsules and tablets of dried extract - Liquid extracts and tinctures in alcohol - Syrups, mostly within Brazil

Brazilian pharmacies sell registered herbal medicines made from the leaf. Outside Brazil, most products are food supplements. Their quality and strength are not checked in the same way.

Only the leaf is used. Products made from root or bark are not the same thing. Some cheap goods are padded with other Maytenus species, so buy from a seller who names the plant in full.

Where it comes from:

Guarani people of southern Brazil and Paraguay used the leaf long before it was written down.

Settlers called it espinheira-santa, which means holy thorn. It was brewed as a tea for stomach pain, heartburn and slow digestion. Some healers also used it for wounds and as a general tonic.

Brazil's government studied the plant in the 1980s under a national medicinal plant programme. The leaf was later added to the official list of herbal medicines for public clinics. It remains one of the most used stomach herbs in the country.

What does espinheira-santa help with?

• Heartburn and acid reflux symptoms: This is the most common reason people reach for the tea in Brazil. Tradition held that it cooled the burn and settled the stomach. Animal work shows lower acid output after leaf extracts. Human trials testing reflux are lacking. If heartburn happens most days, see a doctor. It can have causes that need treatment.
• Gastritis (an inflamed stomach lining): Folk use for gastritis is long standing and is why Brazil approved the leaf for public supply. In rats, extracts cut damage to the stomach lining from alcohol and from painkillers. That has not been repeated well in people. Gastritis is diagnosed by a doctor, often with a scope or a breath test. Treating it by guesswork is not wise.
• Peptic ulcer (a sore in the stomach lining) pain: Healers used the tea for gnawing stomach pain long before ulcers were understood. A small Brazilian trial in the 1980s reported symptom relief in people with upper stomach pain. The study was small and its design was weak by today's standards. Most ulcers are caused by Helicobacter pylori or by painkillers. Both need proper medical treatment, not tea.
• Indigestion (dyspepsia): Tradition treated it as an everyday remedy for a heavy, sour stomach. The human trial record here is thin and the results are mixed. No large, well run trial has settled the question. Mild indigestion often passes on its own, which makes any herb look good.
• Mild stomach upset after rich food: A cup after a heavy meal is a common habit in southern Brazil. This use has never been formally tested. Warm fluid and a pause after eating may do much of the work. There is little to lose here if you are not in a group told to avoid the herb.

What are the side effects of espinheira-santa?

• Dry mouth
• Nausea
• Odd or metallic taste
• Mild stomach upset or loose stools
• Lower milk supply reported in breastfeeding women
• Allergic rash, which is rare

Good to know:

Side effects are usually mild. Dry mouth is the one reported most often.

Nausea and loose stools happen in some people. Tannins are the likely cause. These usually settle once use stops.

Serious harm has not been reported in the published record. That record is small, so it cannot rule much out.

The clearest real risk is in pregnancy and breastfeeding. Animal work points to harm to the unborn, and lower milk supply has been reported in women.

How much espinheira-santa should you take?

• Recommended daily: This page does not tell you what to take. Brazilian labels often list an infusion of 1 to 2 g of dried leaf in a cup of hot water. That cup is usually listed two or three times a day. Capsule labels often carry 300 to 400 mg of dried extract per dose. Strength varies widely between brands. Read the label, and ask a pharmacist or doctor if you are unsure. More is not better. Large amounts of tannins can upset the very stomach the tea is meant to settle.
• Best time of day: Timing is not critical. Tradition favours a cup before or between meals. Some people take it at the first sign of heartburn. Others spread doses across the day. Neither pattern has been compared in a trial.
• With or without food: Most people drink it before meals, on a fairly empty stomach. Tannins can feel harsh when the stomach is very empty. If that happens, taking it with food is reasonable. Food may blunt the effect slightly, though this has not been measured. Keep it at least two hours away from iron tablets and other mineral supplements.
• Time to effect: There is no reliable answer, and it may do nothing for you. People who notice a change often report it within a few days. For some it takes two or three weeks. Do not expect fast relief. If your pain is severe or sudden, this is not the right tool.
• How long to take it: Short courses are the norm. Labels and Brazilian guidance point to a few weeks, not months. There is no good safety data for long-term daily use. Nobody has studied it for years at a time. Stomach pain that lasts beyond two weeks needs a doctor. A herbal tea can mask a problem that needs testing.