NH+Nutrition+Notes

Why do we eat?
 * energy
 * building things in our body

Calories
 * measure of energy
 * we usually eat too much of this (too much energy) and this causes weight gain

Fat Cholesterol
 * Energy storage
 * lipid membrane around every cell in the body
 * fats to avoid
 * saturated fat->
 * animal fat
 * solid at room temp
 * Trans fat
 * man made fat
 * important part of human body but you don't want too much. Connected to heart disease

Sodium
 * need it in your diet but you want to limit it

Carbohydrates
 * Good carb
 * fiber- plant material

Protein
 * everything cells do is done by a protein
 * our DNA is coded to make proteins
 * made out of amino acids--> protein in our diets gives us amino acids to make our own proteins
 * 20 different amino acids and we can only make 10 of them. all the other ones we have to eat
 * any other animal is high in protein- muscles
 * eggs, meat, milk, beans

Vitamin A
 * helps with vision
 * carrots are a good source

Vitamin C
 * helps your immune system?
 * makes collagen- 25% of human protein- lips, nose,- in connective tissue
 * filler protein- fills the empty spaces
 * scurvy is a disease caused by lack of vitamin c

Calcium
 * makes bones stronger

Iron
 * for red blood cells