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Rice

Early evidence for: Fluid replacement in diarrhoea; Bland food during recovery; Soothing itchy skin; Hair rinses; Everyday energy.

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What is Rice? Rice is the seed of a grass, Oryza sativa. In the Caribbean it is the daily staple food. Haitians call it diri; in the Dominican Republic it is arroz. Rice is also a home remedy. The main form is rice water, the cloudy liquid left after rinsing or boiling the grain. Families have used it for loose stools, weak stomachs and itchy skin. Long use in a tradition is not proof that a remedy works. It is also not proof that it is safe. Here the evidence is split: rice-based drinks for fluid loss have real support, while most other home uses do not. How does Rice work? Rice is mostly starch, which the body breaks down into sugar for energy. That part is settled. In people with cholera, rice-based oral rehydration salts (ORS, a measured salt and sugar drink) cut the amount of stool passed. The starch seems to release sugar slowly in the gut. That sugar helps the gut pull salt and water back in. Plain home rice water is weaker than an ORS sachet. It holds little salt and no set amount of sugar. Health services still treat proper ORS as the first choice. On skin, rice starch may form a soft film and soak up moisture. A small trial of rice starch baths reported less itching in eczema. That is early work, not settled proof. Rice bran oil has been tested for blood fats. In small trials it lowered LDL (the "bad" cholesterol) a little. The effect is modest and the trials are few. What forms does Rice come in? Cooked grain is the everyday form. It is sold white, brown, parboiled or red. Rice water is made at home by rinsing or boiling grains and keeping the liquid. Some people drink it warm. Others cool it and use it on skin or hair. Rice-based oral rehydration sachets are sold in some countries. These are measured medical products. They are not the same thing as home rice water. Shops also sell rice flour, rice starch powder and rice drinks. Rice bran, rice bran oil and rice protein powder are sold as supplements. Infant rice cereal is its own product, with its own arsenic rules in several countries. Where it comes from: Rice has been grown in Asia for thousands of years. Traders and colonists carried it to the Caribbean. West Africans brought deep rice-growing skill with them under slavery. It became the base of the plate. Haiti has diri ak pwa; the Dominican Republic has arroz con habichuelas. Home use grew from the kitchen. Elders gave agua de arroz, or rice water, to children with loose stools and to adults with a sour stomach. Rice flour and starch were dusted or bathed onto heat rash and itchy skin. Rice water was also saved for hair rinses, a custom shared with parts of Asia.

Helps

What does Rice help with? Watery diarrhoea and fluid replacement: This is the best-supported use. Trials in adults with cholera found that rice-based oral rehydration salts cut stool output more than the standard glucose drink. Home rice water is a much weaker product. It gives fluid and a little starch, but not the right salt balance. It does not replace ORS when someone is very dry. Bland eating while recovering from a stomach bug: Caribbean households served plain rice and rice water to settle a sore stomach. Plain starch is easy to eat and well tolerated by most people. There is no good trial showing that rice shortens an illness. It mainly supplies calories and fluid while you recover. Itchy or irritated skin: Rice starch was dusted on heat rash and added to bath water for itch. A small trial of rice starch baths reported less itching in eczema. That single study is not strong proof. Rice water on skin may help some people and do nothing for others. Hair rinses: Rice water, plain or fermented, has long been used as a hair rinse. The claimed effects are shine and easier combing. Human evidence is very thin. A few small laboratory and hair-fibre studies exist, but they do not show that hair grows faster. Everyday energy as a staple food: This is simply true. Rice is a cheap, filling source of carbohydrate and feeds much of the world. White rice raises blood sugar quickly. Large daily amounts of white rice are linked in population studies with a higher risk of type 2 diabetes. Links like these do not prove cause. Rice bran oil for cholesterol: Rice bran oil is sold for heart health. Small trials show a modest drop in LDL (the "bad" cholesterol) when it replaces other fats. It is not a substitute for cholesterol medicine. Tell your doctor if you start using it.

Quick Facts

  • What it is: Rice is the staple grain Oryza sativa, eaten daily across the Caribbean and also used at home as rice water.
  • Main uses: Fluid replacement in diarrhoea, Bland food during recovery, Soothing itchy skin, Hair rinses, Everyday energy
  • Active ingredients: Starch (amylose and amylopectin), Fibre, B vitamins, Magnesium and manganese, Gamma-oryzanol, Tocotrienols, Phytic acid
  • Forms: Cooked grain, Rice water, Rice-based rehydration sachets, Rice flour, Rice starch powder, Rice bran and rice bran oil, Rice drinks
  • Time to effect: Energy within an hour; rehydration drinks over hours
  • Side effects: Usually none; watch stored cooked rice and heavy long-term intake.
  • Pregnancy & breastfeeding: Not assessed for this entry. Ask your doctor or midwife before use.

Educational information, not medical advice — ask your doctor or midwife.

What is Rice?

Rice is the seed of a grass, Oryza sativa. In the Caribbean it is the daily staple food. Haitians call it diri; in the Dominican Republic it is arroz.

Rice is also a home remedy. The main form is rice water, the cloudy liquid left after rinsing or boiling the grain. Families have used it for loose stools, weak stomachs and itchy skin.

Long use in a tradition is not proof that a remedy works. It is also not proof that it is safe. Here the evidence is split: rice-based drinks for fluid loss have real support, while most other home uses do not.

How does Rice work?

Rice is mostly starch, which the body breaks down into sugar for energy. That part is settled.

In people with cholera, rice-based oral rehydration salts (ORS, a measured salt and sugar drink) cut the amount of stool passed. The starch seems to release sugar slowly in the gut. That sugar helps the gut pull salt and water back in.

Plain home rice water is weaker than an ORS sachet. It holds little salt and no set amount of sugar. Health services still treat proper ORS as the first choice.

On skin, rice starch may form a soft film and soak up moisture. A small trial of rice starch baths reported less itching in eczema. That is early work, not settled proof.

Rice bran oil has been tested for blood fats. In small trials it lowered LDL (the "bad" cholesterol) a little. The effect is modest and the trials are few.

What forms does Rice come in?

Cooked grain is the everyday form. It is sold white, brown, parboiled or red.

Rice water is made at home by rinsing or boiling grains and keeping the liquid. Some people drink it warm. Others cool it and use it on skin or hair.

Rice-based oral rehydration sachets are sold in some countries. These are measured medical products. They are not the same thing as home rice water.

Shops also sell rice flour, rice starch powder and rice drinks. Rice bran, rice bran oil and rice protein powder are sold as supplements. Infant rice cereal is its own product, with its own arsenic rules in several countries.

Where it comes from:

Rice has been grown in Asia for thousands of years. Traders and colonists carried it to the Caribbean. West Africans brought deep rice-growing skill with them under slavery.

It became the base of the plate. Haiti has diri ak pwa; the Dominican Republic has arroz con habichuelas.

Home use grew from the kitchen. Elders gave agua de arroz, or rice water, to children with loose stools and to adults with a sour stomach.

Rice flour and starch were dusted or bathed onto heat rash and itchy skin. Rice water was also saved for hair rinses, a custom shared with parts of Asia.

Who should avoid Rice?

  • Do not give rice drinks (rice milk) to a child under 5 years old, because of the arsenic in them.
  • Do not rely on home rice water alone if someone shows signs of dehydration (losing too much body fluid) — use oral rehydration salts and get medical help.
  • Never eat cooked rice that has been left at room temperature for several hours, and never reheat it more than once.
  • Do not make infant rice cereal the only grain you feed a baby; mix in other grains.
  • Do not eat rice in any form if you have had an allergic reaction to it.
  • Avoid making white rice the base of every meal if you have type 2 diabetes, until you have spoken to your doctor or a dietitian.
  • Do not give rice water instead of breast milk or formula to a baby.

When should you see a doctor?

See a doctor if diarrhoea in an adult lasts more than about 2 days, or more than 24 hours in a baby or young child.

Get urgent help for any of these:

- No urine for 8 hours, sunken eyes, a dry mouth or drowsiness - Blood in the stool, or black stools - Vomiting that will not stop - High fever with the diarrhoea - Sudden violent vomiting after eating stored rice

Call emergency services for swelling of the lips, face or throat, or trouble breathing, after eating rice.

Is Rice legal where you live?

Rice is an ordinary food almost everywhere, sold freely in shops. In the UK and EU there are legal limits on inorganic arsenic in rice, with stricter limits for rice used in baby food. In the United States the FDA sets guidance for arsenic in infant rice cereal.

Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.

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