The typical symptoms of food poisoning are a purging. That is vomiting and diarrhea. The severity of these symptoms, as well as the duration of them will depend on two things.
- your level of health, your immune system
- how bad the food poisoning was
If you are very healthy and the poisoning was mild, then the symptoms will also be mild and won't last for long. If you are healthy and the poisoning was serious, then you are likely to experience a violent purging. Your body wants to get rid of the cause as quickly as possible. Your strong immune system can deal with a violent reaction. So your symptoms are likely to be severe, but for a short duration.
Afterward, you will probably recover quickly, scarcely noticing any ill effects. However, if your health is poor, even with a mild dose of food poisoning, you are likely to have an unpleasantly prolonged period of purging. Your body is not strong enough to deal with the problem in a rapid way, so it can simply do what it can.
And if the poisoning is severe, it's likely you'll be so ill you need to be hospitalized. A prolonged period of purging can cause dehydration. A healthy person can cope with a short dehydrating experience and bounce back. An unhealthy person can't. But in all cases, both human and animal, that show symptoms of food poisoning, the homeopathic medicine Arsenicum album will assist the body in trying to show out the offender. This medicine is invaluable in the number of ailments it treats, but food poisoning is at the top of the list.