Leptin is a hormone that helps manage appetite levels. If you are feeling lethargic or if you want to lose a little bit of weight, you may require more leptin in your system. Leptin works by informing your brain about how much you have in your fat reserves.
For most cases of food poisoning, symptoms tend to come on within one to three days of eating the contaminated food. However, for some types of food poisoning, this 'incubation period' can be as long as 90 days.
How long do food poisoning symptoms last? How long food poisoning will last and when symptoms will begin to show depends on what bacteria you ingested. If food poisoning is a result of staph bacteria, symptoms can appear within one or two hours.