vault backup: 2024-09-04 13:30:28

education/nutrition/Nutrients.md

@@ -1,5 +1,6 @@
 Nutrients are the life sustaining substances found in food.
 - Necessary for growth, maintenance, and repair. 
+- Source of raw elements the body uses to carry out activities (mostly oxygen, carbon, hydrogen, nitrogen, and calcium).
 
 There are 6 nutrients:
  - Vitamins
@@ -8,8 +9,9 @@ There are 6 nutrients:
  - Lipids
  - Proteins
  - Water
+Water is the most essential nutrient because the body can only survive for a few days without it. 
 
-A macronutrient is a nutrient the body requires in large quantities, whereas a micronutrient is a nutrient the body requires in small quantities.
+A macronutrient is a nutrient the body requires in large quantities, whereas a micronutrient is a nutrient the body requires in small quantities. Macronutrients supply energy, whereas micronutrients are not sources of energy. 
 
 | Macronutrients | Micronutrients |
 | -------------- | -------------- |
@@ -22,6 +24,7 @@ Nutrients are used for:
 - Energy
 - Regulation of processes
 
+Nutrients will typically have more than one role in the body.
 ## Essential Nutrients
 A nutrient is classified as essential if:
 - It must be supplied by food, because the body cannot create it in sufficient quantities
@@ -61,14 +64,19 @@ Biological and physiological factors influence eating habits. Examples of factor
 - Relationships
 - Income
 
+## Physiological Composition
+The proportions present in males and females varies, but between 50 and 70% by weight of the body is composed of water. Women tend to have less water and protein, with more fat. 
+
 # Definitions
-| Term               | Definition                                                                                                                                                                                                    |
-| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| Nutrients          | The life sustaining substances found in food. Necessary for growth, maintenance, and repair.                                                                                                                  |
-| Nutrition          | The study of how nutrients affect our body.                                                                                                                                                                   |
-| Diet               | A person's usual pattern of food choices. Everyone has a diet, and you don't begin and end diets, you just make changes to your existing diet.                                                                |
-| Lipid              | Fat                                                                                                                                                                                                           |
-| Organic            | An organic substance contains *carbon*, and can be degraded.                                                                                                                                                  |
-| Essential nutrient | A nutrient is considered *essential* if it *must* be supplied by food, because the body cannot create it in sufficient quantities. If an essential nutrient is missing, it results in a *deficiency disease*. |
-| Deficiency disease | A deficiency disease occurs when an essential nutrient is missing. Examples include anemia (iron) and scurvy (vitamin c)                                                                                      |
-| Lifestyle          | A routine way of living                                                                                                                                                                                       |
+| Term               | Definition                                                                                                                                                                                                                                                                       |
+| ------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Nutrients          | The life sustaining substances found in food. Necessary for growth, maintenance, and repair.                                                                                                                                                                                     |
+| Nutrition          | The study of how nutrients affect our body.                                                                                                                                                                                                                                      |
+| Diet               | A person's usual pattern of food choices. Everyone has a diet, and you don't begin and end diets, you just make changes to your existing diet.                                                                                                                                   |
+| Lipid              | Fats and oils.                                                                                                                                                                                                                                                                   |
+| Organic            | An organic substance contains *carbon*, and can be degraded.                                                                                                                                                                                                                     |
+| Essential nutrient | A nutrient is considered *essential* if it *must* be supplied by food, because the body cannot create it in sufficient quantities. If an essential nutrient is missing, it results in a *deficiency disease*.                                                                    |
+| Deficiency disease | A deficiency disease occurs when an essential nutrient is missing. Examples include anemia (iron) and scurvy (vitamin c)                                                                                                                                                         |
+| Lifestyle          | A routine way of living                                                                                                                                                                                                                                                          |
+| Metabolism         | Metabolism is the term for all chemical processes that occur in living cells. This includes:<br>- Breaking larger molecules down into smaller molecules (supplying energy)<br>- Building larger molecules (like protiens or long-chain fats)<br>- Eliminating waste products<br> |
+|                    |                                                                                                                                                                                                                                                                                  |