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 after you eat something will it take to affect you? Dr. Madsen: So food poisoning's going to take about six hours to hit you. And when I tell you this, I'm speaking from personal experience because I had some really bad potato salad once, that I knew was bad, and I still ate it and six hours later, I was as sick as I've ever been.