Macronutrient: Fats

Composition

Composed of carbon, hydrogen, and oxygen organized as a glycerol backbone with fatty acid chains attached.

Types

Fats have 1, 2, or 3 Fatty acid chains attached to glycerol backbone

1. Monoglyceride

2. Diglyceride

3. Triglyceride

Function

• Used for cell growth (part of cell membrane)

• Insulation of organs and nerve fibers

• Lubrication for body tissues

• Each g of fat = 9 kilocalories of energy

Sources

Saturated fat = Beef, fried foods, cheese, ice cream, processed foods

Monounsaturated fat = Canola, olive, and peanut oil, avocados, cashews

Polyunsaturated fat = Corn, sesame, soybean, fish

Trans fat = fried foods, shelf-stable processed foods, crackers

Daily recommendation

25%-35% of total caloric intake