Garlic is indeed part of the onion family and it is also part of the Allium genus. There are a few close relatives of the onion, including the chive, leek, shallot, and rakkyo. Throughout garlic has been used by ancient civilizations as well as in modern times for both medicinal and culinary purposes. Scallions and shallots are also in the onion family, sharing a number of similarities.
You will find that garlic has a lot to offer as both a nutritional and delicious food which is known for having quite a few medicinal benefits as well, such as being able to reduce cholesterol and blood pressure levels in certain people who eat it on a regular basis.