Tut14 Group 6 Dietary fat by

2021-08-19 04:19:55 UTC

- Lipids are composed of carbon (C), hydrogen (H) and oxygen (O)

Functions

2021-08-19 04:20:01 UTC

- Also known as lipids
- Types of fat include, monounsaturated, polyunsaturated, saturated and trans

- Provides energy
- Helps with nutrient absorption
- During digestion, fats are broken down into fatty acids
- Carries fat soluble vitamins and phytochemicals
- Fats are essential for growth in children
- Fat serves as natural shock absorbers, providing a cushion for the bones and vital organs

Adult daily requirements

2021-08-19 04:20:11 UTC

- Fat : 30% of total energy intake (Max) = 70g/day (Actual 30%)
- Saturated fat : < 10% of total fat intake = <25g/day

Energy content

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- Energy density of fat (kCal/100g):
Vegetables: 25
Fruits: 60
Potatoes: 70
Rice & Pasta: 125
Meat & Avocado: 200
Bread: 230
Cheese & Sugar: 400
Nuts & Seeds: 600
Oils: 885

- 2x as many kJ as carbs or protein

Fun facts or misinformation associated with the nutrient

2021-08-19 04:20:42 UTC

- Supply more energy per gram than carbohydrates because they have many more carbons and hydrogens in proportion to their oxygens

2021-08-19 04:21:50 UTC

Fun fact: about 60% of the brain is fat

ybai5992 — 2021-08-19 04:43:03 UTC

Structure

2021-08-19 04:45:51 UTC

ybai5992 — 2021-08-19 04:49:08 UTC

Fatty acids have backbone made of carbon but vary in the number of atoms and bonds between them.
For example:
butyric acid contains four carbon atoms in the chain
palmitic acid contains sixteen carbon atoms in the chain

Fat is the carrier for vitamin A, D and E.

ybai5992 — 2021-08-19 04:53:34 UTC