I know people are confused about eggs. Personally I always eat the egg yolks. That’s where the best nutrition is! Here’s the story:
By throwing out the yolk and only eating egg whites, you’re essentially throwing out the most nutrient dense, antioxidant-rich, vitamin and mineral loaded portion of the egg. The yolks contain so many B-vitamins, trace minerals, vitamin A, folate, choline, lutein, and other powerful nutrients… it’s not even worth trying to list them all.
Even the protein in egg whites isn’t as powerful without the yolks to balance out the amino acid profile and make the protein more bio-available. Not to even mention that the egg yolks from free range chickens are loaded with healthy omega-3 fatty acids.
Yolks contain more than 90% of the calcium, iron, phosphorus, zinc, thiamin, B6, folate, and B12, and panthothenic acid of the egg. In addition, the yolks contain ALL of the fat soluble vitamins A, D, E, and K in the egg, as well as ALL of the essential fatty acids (EFAs).
What about my cholesterol?
When you eat a food that contains a high amount of dietary cholesterol such as eggs, your body down-regulates it’s internal production of cholesterol to balance things out. On the other hand, if you don’t eat enough cholesterol, your body simply produces more since cholesterol has dozens of important vital functions in the body.
There have been plenty of studies lately that indicate that eating whole eggs actually raises your good HDL cholesterol to a higher degree than LDL cholesterol, thereby improving your overall cholesterol ratio and blood chemistry.
In addition, the yolks contain the antioxidant lutein as well as other antioxidants which can help protect you from inflammation within your body (the REAL culprit in heart disease, not dietary cholesterol!), giving yet another reason why the yolks are actually GOOD for you, and not detrimental.
A University of Connecticut study that showed that a group of men in the study that ate 3 eggs per day for 12 weeks while on a reduced carb, higher fat diet increased their HDL good cholesterol by 20%, while their LDL bad cholesterol stayed the same during the study. However, the group that ate egg substitutes (egg whites) saw no change in either and did not see the improvement in good cholesterol (remember that higher HDL levels are associated with lower risk of heart disease) that the whole egg eaters did.
I prefer organic free range eggs from healthy chickens that are allowed to roam freely and eat a more natural diet.
You should also know that groups of people that ate egg breakfasts vs groups of people that ate cereal or bagel-based breakfasts showed that the results of the study showed that the egg eaters lost or maintained a healthier bodyweight, while the cereal/bagel eaters gained weight.
It was hypothesized that the egg eaters actually ate less calories during the remainder of the day because their appetite was more satisfied compared to the cereal/bagel eaters who would have been more prone to wild blood sugar swings and food cravings.