No, our appetite for food is a far too complicated experience for any substance or food to single handedly control. From a research standpoint, it's clear that it is not only our digestive system, but also our nervous system (including our brain), endocrine system, immune system, and metabolic system that all play essential roles in appetite regulation.
It's also clear that appetite is seldom purely "physical." Being hungry also has a constant psychological component. For example, when faced with a tragic, unexpected event in our lives, we often lose our appetite-even if our body is physiologically in need of food. Or we celebrate with a second helping of a delightful dessert on some special, party-like occasion-even when our body needs none of the substances found in the dessert.
Because appetite is such a complicated human experience, it's usually helpful to focus less on your appetite and more on the quality of your diet. If you set up and follow a meal plan that is based on whole, natural foods, and if you are certain that your meal plan contains everything you need for optimal nourishment, you will not need to suppress your appetite when it comes to the meal plan you've already planned.
For some individuals, smaller, more frequent "mini-meals" work much better than a few larger complete meals when it comes to appetite control. (It makes sense that we tend to get hungrier the longer we've gone without food.) It's very important to focus on a meal plan that is complete in terms of your individual nourishment. Your diet needs to provide you with optimal levels of vitamins, minerals, protein, fiber, and other nutrients that support all of your body systems.
There are no simple solutions to curbing your appetite outside of your pre-planned whole foods diet. Sometimes it can be helpful to drink clean, pure water or sip herbal tea if you're feeling an appetite outside of your meal plan. More times than not, however, you'll need to get caught up in some other activity that you enjoy in order for your appetite to be forgotten. One of the worst steps you can take is to remain standing in your kitchen, or seated on your couch, just thinking about food.