i need help with this work!! please, really urgent?

Question

i'm just not sure about the answers please help!

1-which nutrient supplies the most calories per ounce? (is it fat?)
2-how does a low calcium intake affect the body? (is it: weakness of bones, nails and teeth, and loss of hair?)
3-why should you limit the amount of sodium in yor diet? (is it because it causes high blood pressure?)
4-why are saturated fats to be avoided in making food selections? (is ti because it causes obesity and high cholesterol?)
5-how much of your daily caloric intake should come from carbohydrates, fat and proteins? (i only got 65g for fat)
6-why do you need to have some fat in your diet? (is it because it prevents dehydration?)
7-why is it mileading to label peanut butter as having no cholesterol? (is it because the peanuts have natural fats?)


please don't tell me to do my OWN homework b/c i already tried!

Answer 1

6 - You need fat in your diet b/c your body needs fat for many things. Your cell membranes are phospholipids, your body needs it for insulation, cushion, and a lot of other things. So your body needs fat for regular functions.

7. You are on the right track with peanuts and peanut butter. There is natural fat in peanut butter. (I don't know the exacts of this but I would say stick with what you are already thinking)

1. fat is always the answer
2, 3. u r on the right track
4. think of the double bonds of fatty acids, HDL and LDL cholesterol (I can't think of the details, but this should help your search)
5. Most people like the 60-55% carbs, 30% fat, 15 -10% protein idea. So the numbers depend on the total calories.

Hope this helps. Good Luck.

Answer 2

1 Fat
2 Osteoporosis (weak bones)
3 Yes
4 Yes for obesity and cholesterol
5 It depends on many factors. About 55% Carb, 30% Protein,15% Fat is decent.
6 Transport medium for fat soluble nutrients, Omega 3 and Omega 6 fatty acids.
7. Hydrogenated oils (added to many brands of peanut butter) can cause your body to produce more cholesterol without you having to eat any.

Here is a link to info about nutrition.
http://spartafit.com/nutrition/nutrition.html

Answer 3

All of the answers sound perfect, but I think in #6, your answer is right, but also because it creates insulation and keeps your body heat in when you need it, and also it is a cushion for your major organs and such so that they are less prone to get injured. Sound good to you?! Hope that helps, and I know how it is to need help with homework... lol... you can ask me anytime!