Nutrition And Healthy Eating Flashcards
Define nutrition
The science behind his your body uses the components of food to grow, maintain, and repair itself.
What is a nutrient?
Your body needs more than 50 nutrients on a daily basis in order to function properly and to stay healthy
-each nutrient helps your body perform a specific task
Nutrients can belong in 6 categories, these categories are:
- carbs
- fats
- proteins
- vitamins
- minerals
- water
The nutrients that we need in relatively large amounts everyday are called…
Macronutrients
The four macronutrients are:
- carbohydrates
- proteins
- fats
- water
Carbohydrates functions
- preferred source of energy for the body
- over 50% of total daily caloric intake should come from carb-rich foods
Carbohydrates calories
1 gram - 4 calorie
Carbohydrates food sources
Breads, cereals, pasta, rice, fruit, fruit juices, vegetables, milk, yoghurt
Simple carbohydrates
Also called sugars and occur naturally in fruit, milk, yoghurt and juice (also used in junk food like pop and candy)
Complex carbohydrates
Come from starches and found in grain products, vegetables, and legumes
Protein functions
- development and maintenance of body cells, tissues, and structures
- provides energy or calories when body is short of carbs
Protein calories
1 gram - 4 calories
Protein food sources
High quality
- eggs
- meat
- fish/poultry
- milk products
Proteins additional info
Of the 20 amino acids (building blocks of life), the human body can produce 11 amino acids on its own
Fats functions
- concentrated source of energy and useful during prolonged physical activities
- help in absorption of fat: soluble vitamins that the body needs
- pad and protect organs
- insulate body from cold
- adds flavour and helps satisfy hunger
Fats calories
1 gram - 9 calories
Fats food sources
Meat poultry/fish, milk products, nuts/seeds, oils, butter/margarine, salad dressing
Saturated fats
- solid at room temp(e.g. beef, pork, egg yolks,topical oils, dairy)
- high intake is associated with increased of heart disease, obesity, diabetes, high blood pressure, and cancer
Unsaturated fats
- liquid at room temp (e.g. veg fats, olive oil, canola, corn, soybean, and cottonseed oils)
- associated with lowered risk for heart disease
- recommendation: less than 30% of diet should be from fats and 10% of that from saturated fats