Micronutrient Flashcards
Micronutrients required by the body in ..
smaller amounts
Micronutrients include all of the …
essential minerals and vitamins
16 essential minerals and 13 essential vitamins
Micro as energy source
not a source of energy , but they assist in the process of energy metabolism
as cofactors or components of enzymes (known as
coenzymes)
catalyze (or accelerate) chemical reactions
Enzymes
Minerals
inorganic substances that are classified depending on how much the body requires
Trace minerals
Such as molybdenum, selenium, zinc, iron, and iodine, are only required in amounts of a few milligrams or less per day
Major minerals
Such as calcium, magnesium, potassium, sodium, and phosphorus, are required in amounts of hundreds of milligrams or more per day
Many minerals are critical for
Enzyme function ,
Maintain fluid balance
Build bone tissue
Synthesize hormones
transmit nerve impulses
contract and relax muscles
protect against harmful free radicals in the body
Vitamins are
organic nutrients that are categorized based on their solubility in water.
The water soluble vitamins
are vitamin C and all of the B vitamins.
The fat soluble vitamins
Vitamins A, D, E, and K.
The energy from macronutrients comes from their …
chemical bonds
Energy Sources (kcal/g):
- Carbohydrates 4
- Protein 4
- Alcohol 7
- Lipids 9
Alcohol
It isn’t a nutrient, because it isn’t required as a source of nourishment to the body