1. Eating or drinking by mistake, unmindful of the fast.

2. Unintentional vomiting.

3. Swallowing things which are not possible to avoid, such as one own saliva, street dust, smoke, etc.

4. Brushing the teeth.

5. Bathing: if water is swallowed unintentionally, it does not invalidate the fast. However, while fasting gargling should be avoided.

6. Injection or I/V (Intravenous) which is solely medicinal and not nutritional.

7. In some special circumstances if the food or drink is just tasted and immediately removed out of the mouth without allowing it to enter into the throat.