Fats and Healthy Nutrition - Eating Whole Eggs?
To function properly, human body needs approximately one third of saturated fats, one third of monounsaturated fats and one third of polyunsaturated fats. Although saturated fats are needed just as monounsaturated and polyunsaturated fats, because they are consumed in western nutrition much more than other fats, saturated fats are often called 'bad fats' and monounsaturated and polyunsaturated fats are called 'good fats'.
During 'fat craze', all fats were bad. Today some nutritionists often claim that all carbohydrates are bad and their intake should be at minimum. As many times before, truth is somewhere in the middle - proper nutrition should be well balanced and adapted to individual needs.
Sources of Good Fats
What are food choices that are sources of good fats? Well, all fish fats are ok, olive, fish and flax seeds oils are ok (with fish oil being best of them all), omega-3 eggs are ok, different nuts are ok, grass fed beef is also great. Natural peanut butter is good food choice if it is really natural peanut butter (contains only peanuts and salt, with no additives of any kind). Good fats sources are often good sources of vitamins soluble in fats - vitamins A, D, E etc.
HDL and LDL Cholesterol
There are two types of cholesterol - HDL (good one) and LDL (bad one). Humans need LDL too, believe it or not, for their bodies to function. 'Old' daily recommended maximum intake for cholesterol is around 300mg of cholesterol and many people eat much less than that. So why do people have elevated levels of cholesterol in blood? Problem is in nutrition loaded with calories in the form of simple carbs. What body does with excess carbs? After replenishing glycogen reserves, all excess carbs are converted to fats and stored as fat. Some of that fat is excess cholesterol. And because human body needs cholesterol, human liver produces 1-2 grams of cholesterol per day even if excess carbs are not issue. So, you can daily consume 200 - 300 mg of any kind of cholesterol, but because of excess carbs and cholesterol production, you can have elevated cholesterol levels. This is of course simplification of the processes in human body, but it gives good picture of what is going on with excess carbs in human body.
Human body adapts quickly, and if you consume more than 'recommended' 300mg per day of cholesterol, then your liver will produce less cholesterol. Simplification again, because if you eat more calories than you need, body will convert excess calories to fats (including cholesterol) and the story repeats itself.
Eggs and Cholesterol Levels
120g (two medium eggs) of eggs have approximately 14g of protein, 1g of carbs and 12g of fats. They also have 300 - 400mg of cholesterol (both LDL and HDL).
In some movies we can see main characters drinking whole eggs for strength and stamina. Even some real-life coaches claim that it is the best way to consume eggs. Don't do that. Eat your eggs, for example hardboiled, for better absorption of proteins and some minerals and vitamins - also, when you cook eggs, there is no danger of getting salmonella or any similar disease. If you can, buy organic eggs or omega-3 eggs - omega-3 eggs contain around 300mg of omega-3 per yolk. Good reason to eat few of them daily.
Throwing away yolks
Is throwing away yolks a good or bad thing? Well, if you eat 10 egg whites, you will on average eat 40g of protein, 5 grams of carbs and 0 (zero, null) grams of fats. If you eat 10 eggs, than you will eat around 70g of protein, 6 grams of carbs and 60 grams of fats. So, for additional 30g of protein, you will eat additional 60g of fats and maybe 1.5 - 2g of cholesterol. Bottom line - eat yolks only from organic or/and omega-3 eggs (2-3 a day) and egg whites from 'regular' eggs. If you eat eggs only occasionally, eat them whole. Also, don't forget that whole eggs are one of the rare natural vitamin D sources.
Today we know that balanced nutrition means eating both fats and complex carbs with lean protein in every meal. If you are unable to increase your daily intake of essential fatty acids through proper nutrition, than you should consider taking omega-3 or/and similar nutrition supplement. But never forget, real food is real food.