Exam 1 Flashcards
what are nutrients?
nutrients are essential and there is a negative consequence associated with absence
What are non nutrients?
May have biological activity in the body, but nothing bad will happen if you don’t consume it
What are phytochemicals?
biologically active, naturally occurring chemical compounds in plant foods, act as natural defense for the plant
what are calories?
the amount of energy required to raise 1 cc of water 1 degree Celsius
What nutrients provide energy?
carbohydrates, fats, protein
what is the caloric density of carbs?
4 calories per gram
what is the caloric density of protein?
4 calories per gram
what is the caloric density of fats?
9 calories per gram
What is nutrient dense?
high in nutrients, low in calories
What is energy dense?
lots of calories, lower in nutrients
Nutrient dense food has more..
fiber, water, vitamins, minerals, healthful fats, protein
Nutrient dense food has less…
sugar, starch, saturated fats, empty calories
a food guide should..
have adequacy, balance, moderation, and variety
what is on the current food guide?
fruits, grains, vegetables, proteins, and dairy
serving sizes on food labels are based on…
what people usually eat not the suggested size
Lay of information
are not official or not trained by someone in that area
What is the purpose of a food guide?
What is the purpose of a food guide?
peer reviewed articles
scientific papers that are reviewed, usually anonymously by a scientist’s colleagues, or peers
What is the first step of the scientific method?
observation
What is the second step of the scientific method?
research topic area
what is the third step of the scientific method?
Form a hypothesis
What is the fourth step of the scientific method?
experiment
What is the fifth step of the scientific method?
Analyze data
what is the last step of the scientific method?
report conclusion
