When preparing oral rehydration salts by yourself, the correct ratio is very important to ensure the safety and effectiveness of rehydration salts. The formula of oral rehydration salt (ORS) recommended by the World Health Organization (WHO) is as follows： ### Recipe： -**Table salt (sodium chloride)**: 2.6g -**Sugar (glucose or sucrose)**: 13.5g -**Sodium citrate**: 2.9g (can be replaced by baking soda, the dosage is 2.5g) -**Potassium chloride**: 1.5g (optional, but recommended for potassium supplementation) ### Preparation method： 1. Mix the above ingredients evenly. 2. Dissolve the mixture in **1 liter** of clean drinking water. 3. Stir well to ensure that all ingredients are completely dissolved. ### Precautions： -**Water quality**: Ensure the use of clean and safe drinking water and avoid the use of untreated water sources. -**Dosage**: Take it in moderation according to age and weight. It is usually recommended to take 50-100 ml per kilogram of body weight and drink it multiple times. -**Storage**: The formulated rehydration salt solution should be used within 24 hours to avoid long-term storage. ### Alternative： If there is no sodium citrate or potassium chloride, you can use the following simplified formula： -**Table salt**: 3.5g -**Sugar**: 20 grams -**Baking soda**: 2.5g Dissolve the above ingredients in 1 liter of clean drinking water. ### Important note： -If the symptoms are severe or persistent, it is recommended to seek medical attention as soon as possible. -Homemade rehydration salts are only suitable for mild dehydration. If you are severely dehydrated or continue to vomit or diarrhea, you should seek professional medical help immediately. Hope this information is helpful to you!