Nonessential amino acids can be created by the liver or (11)
Matching complete and incomplete proteins
Chapter 5: Fats
What is the major function of triglyceride in food and physiologically in the body?
Food functi
...
Nonessential amino acids can be created by the liver or (11)
Matching complete and incomplete proteins
Chapter 5: Fats
What is the major function of triglyceride in food and physiologically in the body?
Food functions: Triglycerides
Triglycerides provide food functions of energy, palatability, safety, food processing, and
source of nutrients.
Source of energy
Palatability: fat makes food smell and taste good
Satiety and satiation: fat helps prevent hunger between meals. Fat slow down digestion
because of the hormones released in response to its presence in the GI tract, causing us to
feel full and satisfied->satiety. Satiation occurs during, not after eating. Satiation tends to
increase our desire to eat more fatty food, not less.
Food processing: emulsifier- a substance that works by being soluble in water and fat at
the same time. Lecithin, a phospholipid, has an extensive role as an emulsifier
Nutrient source
Contain and transport fat-soluble vitamin A D E K
Contain and transport essential fatty acids (linoleic and linolenic: essential)
Physiologically functions:
Stored energy
Adipose tissue storage form of fat (mainly triglycerides), could produce about
3500 kcal as energy
Important source of fuel during illness and food restriction, and major energy
source for muscle work
Organ protection
Temperature regulator
Insulation: a substance composed largely of fatty tissues, called myelin, cover nerve
cells. This covering provided electrical insulation that allows for transmission of nerve
impulses
Where does the digestion of lipids mainly occur?
Digestion of lipids occurs mainly in the small intestine
Fat as a Nutrient in the Body: Digestion
Mouth
Primary fat digestive process is mechanical, inasmuch as teeth masticate fatty
food.
Glands of the tongue produce fat-splitting enzyme (lingual lipase), released with
saliva.
Stomach
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