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Chapter 117 Proteins & Fats
Chapter
Foods and Nutrition I
Ch 11 Nutrition Basics
Proteins and Fats
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Chapter 117 Proteins & Fats
Chapter
Protein - builds, maintains and repairs body
tissues
• Protein are broken down into amino acids during
digestion.
• Essential amino acids only come from food.
amino acids
essential amino acids
A molecule that combines with
other amino acid molecules to
make proteins.
An amino acid that your body
needs but cannot make.
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Chapter 117 Proteins & Fats
Chapter
Protein
• Meat, poultry, fish, eggs, milk and soy provide
complete protein.
• Plant foods provide incomplete proteins.
• Combining incomplete proteins, or foods that
lack one or more essential amino acid, can
provide complete protein.
complete protein
incomplete protein
A food that contains all nine
essential amino acids.
A food that lacks one or more
essential amino acids is called
an incomplete protein.
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Chapter 117 Proteins & Fats
Chapter
Approximate Protein in Selected Foods
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Chapter 117 Proteins & Fats
Chapter
Fats and Cholesterol
• Fats:
• absorb vitamins
• supply energy
• cushion organs
• protect bones
• provide warmth
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Chapter 117 Proteins & Fats
Chapter
Fats and Cholesterol
cholesterol
A fatlike substance in cells that is
needed for many body processes.
• 2 Types of cholesterol
• Low-Density Lipoproteins (LDL) – “bad”
cholesterol
– Too much LDL can cause heart problems
• High-Density Lipoproteins (HDL) – “good”
cholesterol
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Chapter 117 Proteins & Fats
Chapter
Fats and Cholesterol
• Three categories of fat:
• Saturated
• Monounsaturated
• Polyunsaturated
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Chapter 117 Proteins & Fats
Chapter
Fats and Cholesterol
• Saturated fats
• Tend to increase the amount of cholesterol in
the blood
• Are solid at room temperature
• Examples: Lard, butter, whole-milk products
• Linked to an increased risk for heart disease
and other cardiovascular problems
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Chapter 117 Proteins & Fats
Chapter
Fats and Cholesterol
• Monounsaturated fats
• Usually liquid at room temperature
• Examples: olive and peanut oils
• Considered more healthful than saturated fats
• Generally don’t raise cholesterol levels
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Chapter 117 Proteins & Fats
Chapter
Fats and Cholesterol
• Polyunsaturated fats
• Usually liquid at room temperature
• Examples: corn, sunflower, and soybean oils
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Chapter 117 Proteins & Fats
Chapter
Discussion Questions
• Why have children in America become so big?
• What are some bad health practices that you
currently have?
• What can you do to help yourself become
healthier and not become obese?
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Chapter 117 Proteins & Fats
Chapter
Avoiding Too Much Fat Flyer
• Create a flyer using one of the 16 tips to avoid too
much fat, saturated fat, and cholesterol using
Comic Life OR by hand
• State the tip
• Include at least one picture
• Include one additional fact about fat,
cholesterol, being healthy, or obesity
• Use more than one color and font
• Include a recipe that uses your tip
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