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Friend has sallow skin, bloodshot eyes and her hair seems to be falling…

- - - - iron required in hemoglobin and myoglobin
        
        obtained from meat, poultry, fish, dark leafy vegetables, nuts, and whole grains
    - - water doesn't have chemicals or bacteria removed
- - - - may be outdated
  - - - from insufficient intake or iron loss
      - fatigue, weakness, pale skin, and sensitivity to cold
- - - - amount of nutrients required dependent on a number of factors
        
        age, sex, body mass, physical activity, health, pregnancy
      - established values for nutrients set by federal agencies
      - originally established by Food and Nutrition Board
      - used for food planning, food labeling, education, etc.
  - - - glucose, the major carbohydrate providing energy
    - - triglycerides
        
        another major energy-providing molecule
      - cholesterol
        
        precursor molecule for formation of steroid hormones, bile salts, and fat-soluble vitamins
    - - needed in adequate quantities to replace worn out protein structures
      - major source of nitrogen
        
        needed for synthesizing nitrogen-containing molecules
  - - - muscle ability to function quickly and properly
    - - protects against heart disease
      - prevents plaque build up
    - - regulates hormones
        
        especially insulin
    - - nutrients are required for functional brain activity and nerves
    - - keep harmful bacteria from binding onto the bladder
      - prevents UTIs
  - - - carbohydrates
        
        disaccharides
        
        polysaccharides
        
        monosaccharides
      - lipids
        
        include triglycerides, phospholipids, steroids, eicosanoids
      - proteins
        
        formed from amino acids
        
        essential amino acids
        
        complete proteins
        
        nonessential amino acids
        
        incomplete proteins
    - - organic molecules required for normal metabolism
        
        water-soluble vitamins
        
        fat-soluble vitamins
        
        essential vitamins
        
        nonessential vitamins
    - - inorganic ions obtained from the diet required in daily amounts
        
        calcium
        
        sodium and potassium
        
        iron
        
        zinc
    - - considered by some to be a nutrient