Garlic is known for warding off Vampires, but for humans, this powerful nutrient can ward off colds.  According to FitSugar,

A study followed two groups — one that took garlic supplements and another that took a placebo — and found that the garlic group came down with fewer colds, and recovered faster too. Researchers aren't exactly clear why it helps, but some suggest that allicin, a main component of the pungent vegetable, blocks enzymes that play a part in causing infections.

It's also not clear if garlic works after the onset of a cold, or if it needs to be taken as a preventative measure. Until more research comes in, I'll keep taking my supplements regularly.

Although our breath may stink after eating a garlicky slice of pizza, mashed potatoes or other types of food, it is a great nutrient to our body.  My mom practically uses it in everything she cooks, she's a big garlic lover!  Maybe that's why I rarely got colds...hhhmmmm.