What is the essential understanding?

What does protein do for the body? Are Rowntree's Jelly Tots vegetarian? What does a high protein diet consist of? What can you eat for lunch that has 300 calories? In order to get a fatter butt can you eat a ton of junk food and sit around and then when you gain weight do situps or will the situps decrease your butt fat too? If I am 37 years old and 5'8 how many calories do i need in a day? How do you calculate 464 joules to Calories? Why is it a myth that aerobic exercise is the only way to lose fat? How do you lose weight and you eat a lot? What happens if your to underweight? Is there iron content in pork? What is the name of the main carbohydrate found within the vacuole? What are vitamins necessary in diet? What is the poorest source of vitamin D? Are there any good calories to intake on a reputable weight loss program? Does drinking milk prevent cavities? What are the seven main groups of food? How do you use diet in a sentence? What are energy producing nutrients? How can a 17 year old girl weighing 117 pounds at 5'3 lose 7 pounds and get a flat belly?