W1 C1 P.P. - What Is Nutrition? Flashcards
Nutrients
The chemical compounds in foods to provide fuel for energy, growth, and maintenance to regulate body growth processes.
The Six Nutrient Classes
Carbohydrates, lipids (fats), proteins, vitamims, minerals, water
Kilocalories
Kilocalories=Calories
What regulates body processes (Ex. Metabolism)?
Vitamans, minerals, water
What classes provide energy as kilograms?
Carbohydrates, lipids, proteins
Strongest food determinant for Americans?
Taste
Food choice drivers?
Taste
Social reasons/trends
Cost/time/convenience
Habits/emotions
Nutrition
The study of how foods’ nutrients and compounds nourish/help/affect the body.
Macronutrients
Energy-yielding nutrients needed in higher amounts (Carbohydrates, lipids [fats] , proteins
Micronutrients
Needed in smaller amounts (Vitamins, minerals)
Amount of water needed?
Copious amounts daily
Molecular build up of macronutrients
-Are organic compounds (contain carbon atoms)
-contain hydrogen & oxygen atoms
-Proteins contain nitrogen atoms
What do carbohydrates supply?
Glucose
What do fats do?
- Cushion organs
- insulate body
Proteins can provide energy but are primarily for…
- Growth and maintenance of muscle, tissues, organs
- Making certain hormones, most enzymes, and healthy immune system
- Transporting other nutrients
1 gram of carbohydrate or protein is how many calories?
4 calories
1 gram of fat is how many calories?
9 calories
Why are vitamins and minerals essential for metabolism?
Many assist enzymes in speeding up chemical reactions in the body
What are vitamins?
Organic compounds that usually have to be obtained from food.
What are minerals?
Inorganic substances.
What body processes is water vital for?
- Part of fluid medium inside of cells
- Helps chemical reactions
- Helps maintain body temperature
- Key role in transporting nutrients and oxygen to cells and removing waste products.
- Lubricate for joints, eyes, mouth, and intestinal tract.
- Protective cushion for organs
A well balanced diet includes…
Essential nutrients from all six classes + fiber and phytochemicals (which help fight diseases)
Fiber
The portion of plant foods that isn’t digested in the small intestine.
Phytochemicals
Nonnutritive compound in plant foods that may play a role in fighting chronic diseases.