Originally posted by
We never really do dessert, but there are certain foods that make me crave something sweet after I eat them. I always thought that was odd.
This is probably because the food you ate was partially or totally comprised of foods with a high glycemic index. That is a rating for each food that shows how fast it affects your blood sugar. When a food has a high glycemic value, that means it raises blood sugar levels rapidly, often in a spike & then it dips down fast, the crash after the sugar "high". When the blood sugar rises, your body releases insulin to help store it in your cells. Once the sugar level dips back down, the insulin floating around makes you hungry. The body knows it needs to use up the insulin, so it triggers a craving for sweets because that is the fastest, easiest way to get the sugar into the blood stream.
Foods that have a high glycemic index value, are not always necessarily what you would expect, either, but think of all the things diabetics should avoid. Since the glycemic index is an important tool diabetics use to control blood sugar levels, the ratings for most foods can easily be found online. To avoid the spikes in blood sugar & the wild fluctuations that are so dangerous, it behooves everyone to eat balanced meals that contain more slowly digested foods, such as proteins, with the carbs which tend to be more quickly metabolized. The combination helps to slow down, or temper, the effects of the higher glycemic foods. This allows the body to maintain a steady release of insulin & that is healthy.
So, after all that, Gary, I hope you see that your craving is a natural response of your body in reaction to what you just ate! It's nothing to worry about if it's not happening every time you eat. (But, if you become very sleepy after eating sweets, that's another warning sign that something is wrong.) Some diabetics can manage their disease through diet alone & they use the glycemic index to do that.