The organic material in coal is composed mainly of carbon, oxygen, hydrogen, nitrogen, and sulfur. The heat of metamorphism destroys the organic molecules of coal, volatilizing the oxygen, hydrogen, nitrogen, and sulfur. What remains is a nearly pure carbon material that crystallizes into mineral graphite.
Egg White Nutrition Basics. According to the Egg Nutrition Center (ENC), the average egg contains about 6.29 grams of protein, 3.6 of which come from the egg white. In addition to proteins, other nutrients found in the egg white are riboflavin, niacin, folate, vitamin B12, calcium, iron, copper, zinc and sodium.
Eggs are the poster child for proteinâyou need only watch Sylvester Stallone chugging raw eggs as Rocky Balboa for proof. And the reputation is well-earned: A single hard-boiled egg packs six grams of protein, all in a convenient, portable package. What the little white orbs don't deserve is a monopoly on your protein consumptionâthere are other equally delicious ways to load up on the muscle-building nutrient. In fact, these five foods all have more protein than an egg: