Biochemistry - Nutrition Overview Flashcards Preview

Block 5 Material > Biochemistry - Nutrition Overview > Flashcards

Flashcards in Biochemistry - Nutrition Overview Deck (17):
1

How to calculate BMI

kg/m^2

Or

If you use lbs and inches multiply by 703

2

Macronutrients

Carbs
Lipids
Proteins

3

Micronutrients

Vitamins
Minerals

4

Energy-yielding nutrients

All macronutrients

Carbs - 4 kcal/g
Protein - 4 kcal/g
Lipids - 9 kcal/g

*alcohol - 7 kcal/g

5

Organic nutrients

Carbs
Lipids
Proteins
Vitamins

6

Inorganic nutrients

Minerals
Water

7

kcal to kJ

Multiply by 4.2

kJ to kcal - multiply by 0.24

8

Why is alcohol not considered a nutrient?

Interferes with the body's growth, maintenance, and repair

9

How many organic vitamins are there?

13

Sensitive to heat, light, and chemicals

10

How many essential minerals are there?

16

Other minerals are environmental contaminants (ex lead)

Indestructible

11

EAR

Estimated Average Requirement

Average amount sufficient for half of population

12

RDA

Recommended Dietary Allowances

To meet needs of most healthy people

Set near the top end of the range of EAR (see graph on pg 21)

13

AI

Adequate Intakes

Insufficient scientific evidence to establish EAR

AI is set instead of RDA

Expected to exceed average requirements

14

UL

Upper limit
Tolerable Upper Intake Levels

Point where nutrient is likely to be toxic
Helps protect against overconsumption

15

EER

Estimated Energy Requirements

Average dietary energy intake to maintain energy balance

Based on:
Healthy body weight
Physical activity

*No upper level

16

AMDR

Accepted macronutrient distribution ranges

Recommendations for each nutrient?
45-65% kcal from carbs
20-35% from fat
10-35% from protein

17

Symptoms of malnutrition

Diarrhea
Skin rashes
Fatigue
Others