The number of calories your body burns at rest to maintain normal body functions. It is the amount...

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Basal Metabolic Rate

Transcript of The number of calories your body burns at rest to maintain normal body functions. It is the amount...

Page 1: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

Basal Metabolic Rate

Page 2: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

BMR

The number of calories your body burns at rest to maintain normal body functions.

It is the amount of calories per day your body burns, regardless of exercise.

It changes with age, weight, height, gender, diet.

Page 3: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

Essential Nutrients

Carbs Fats Proteins Vitamins Minerals Water

Page 4: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

Energy Sources

Carbs and Fats Body source of usable energy

Proteins Building block for proper body functio

Vitamins, Minerals and Water Not energy sources No Calories

Page 5: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

Qualitative and Quantitative Nutritional Needs

Qualitative: variety of foods you need on a daily basis Proteins, carbohydrates, lipids, water, mineral and

vitamins

 Quantitative: amounts of different foods you need, number of grams/litres of food you should eat daily

▪ Varies on:▪ Sex▪ Height▪ Weight (mass)▪ Activity level

Used to determine the amount of nutrients you should eat daily

Page 6: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

Energy supplied by food is measured in kilojoules (kJ) 1g of protein = 16kJ of energy (4kcal/g) 1g of carbohydrates = 16kJ of energy (4kcal/g) 1g of lipids = 36kJ of energy (9kcal/g)

 

All foods supply energy first from carbohydrates, next lipids and finally from protein

Most foods are compounds of all nutrients

Page 7: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

Sandwiches

Order CaloriesFat (saturated

fat)Carbs Protein Sodium

Arby's Roast Beef Sub 760 48g (16g) 47g 35g 2,230mg

Subway 6" Double Meat Meatball Marinara Sub

780 41g (18g) 61g 35g 1,760mg

Other

Order Calories Fat (saturated fat) Carbs Protein Sodium

Pizza Hut Meat Lover's Stuffed Crust Pizza (2 slices) 900 42g (20g) 86g 42g 2,500mg

Taco Nachos BellGrande 780 43g (13g) 80g 20g 1,300mg

Wendy's Chicken BLT Salad 710 47.5g (13g) 30g 36g 1,610mg

Page 8: The number of calories your body burns at rest to maintain normal body functions. It is the amount of calories per day your body burns, regardless.

Energy in Food

Calculate the energy released from each food by using this formula.

4.2 is the value of the specific heat capacity of water, in joules per gram per degree Celsius – the number of joules taken to raise the temperature of water by 1 °C.1 cm3 of water has a mass of 1 g.

If the number is more than 1000 J/g, express it as kilojoules (kJ):

1 kilojoule = 1000 joules


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