Educational information, not medical advice — ask your doctor or midwife.
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.
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.
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.
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.
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.
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.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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