We have to eat the active ingredients of medicinal plants to get their healing effects. These components are the ones with a healing power.
There are herbs that can be directly consumed as a food and require no special preparation. We could consider them food with medicinal properties. For example, to absorb the lycopene content in tomatoes, all we need to do is preparing a good salad. This body will be able to assimilate this component, which is very useful to fight cancer without doing anything else. The same could be said about carrots, dried figs, cabbage, etc.
Other plants are herbs that can be mixed with food, giving them their specific flavor and providing, at the same time, their medicinal properties. They can be used fresh or dried; in the last case we pound them to sprinkle on food. Some of these herbs are rosemary, mint, oregano, purslane, etc.
Apart from these two cases, the majority of medicinal plants must undergo a process that is capable of extracting the active ingredients for medicines that can be absorbed by our body. Major preparations are: