What is a nutrient?
Any food constituent that helps support life
What are the four basic functions of nutrients in the body?
Essential nutrient
Indispensable in the diet!
The body CANNOT synthesize this
Conditionally essential
Required during certain physiologic or pathologic conditions (like lifestage)
Non-essential
Dispensable - the body can synthesize from other diet components
Water functions (3)
This is the most essential nutrient!
T/F: Water is about 70% of the body composition. 15-20% loss of water can result in death
True! That much loss of water is ~ d e h y d r a t i o n ~
Carbohydrates structure (3) and function (4)
Structures: Monosaccharide, Disaccharide, & Polysaccharide
Functions:
1. Energy source
2. Provides form (dry & canned food)
3. Increases food vol
4. Reduces cost of food
Bran, beet pulp, soybean, or peanut hull are all great sources of _____ fiber
Insoluble fiber! (fiber = carbs)
Three benefits of insoluble carbs/fibers
Protein functions (2-6)
List the 11 essential amino acids
Fat special functions (5)
T/F: Fat is a component of cell structure but is not an energy source
False! Is it a component of cell structure AND a source of energy
Fat produces ___ kcals/g which is the most out of all the nutrients
8.5 kcals/g
What is the difference between saturated and unsaturated fats?
Unsat have double bonds (or more) between their C atoms while sat don’t
Omega 3’s double bond is at the ____ position while Omega 6’s is at the ___ position.
The three essential fatty are…
Special functions DHA and EPA do what in animals
Fat diet requirement % in cats is ___ and ___ in dogs
9% in cats
5% in dogs
Formula for RER
(30 x bodyweight in kg) + 70
1 kcal = ____ calories = 1 Calorie
1 kcal = 1000 calories = 1 Calorie
DER formula
kcal/day (RER) x DER factor
What are vitamins
Organic substance (contains carbon) essential to nutrition