There are at least two main strains of coriander. The common and the very dark Indian varieties. There is a single coriander seed, a long stem and around 3 cm in diameter. The seeds are coated with nectar to ward off bugs. So, when you bring this seed to your mouth it can do many things. It can stimulate appetite, it can make your senses better or allow you to concentrate on what you are eating (like when you drink). You will also notice that it prevents hunger. But, if it continues to be present in your life then you will always have to chew or eat the seeds. It is in this way that it adds significantly to its healing powers.