Though you may ingest bountiful vitamins and minerals if you drink raw eggs every day, it's not all omelets and sunshine. According to Science Direct, consuming raw eggs for long periods of time can cause biotin deficiency. For those not up on the essential nutrients, biotin is a water-soluble vitamin in the B-vitamin family, and deficiency can cause decreased immune response, developmental problems in children, issues with seeing and hearing, and dry, scaly skin.

So why do raw eggs cause you to become deficient in biotin? Because raw eggs whites contain something called avidin, an antimicrobial protein that binds to biotin and keeps it from being absorbed into the body. The result is what's called egg white injury syndrome, and it can cause everything from thinning hair to depression to eczematic rashes. 

None of this is guaranteed, of course, and it doesn't mean that drinking a glass of raw eggs every day is going to turn you into a balding, depressed person with perpetual rashes. But if you notice these types of symptoms beginning you may want to start filtering out the whites and just drink the egg yolks.