New Yorkers eat a lot of garlic, and even if we don't, its unmistakable scent — filling the streets courtesy of the thousands of pizzerias and Italian restaurants feeding the five boroughs — is a part of our daily lives. And there's another thing we take for granted, along with ubiquity — generations of Tri-Staters have grown up being told by our elders that eating garlic is good for our health. So, you know — mangia. But what exactly are these frequently-referenced health benefits?