Foods and Nutrition 1021 Lecture Notes - Lecture 1: Broccoli, Endorphins, Dietary Supplement

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Foods 1021 – Class 1 18:03
Chapter 1
Nutrition is a relatively new science – first vitamin discovered in 1897 and
last in 1948
Macronutrients is "big" nutrients (cho, pro, fat)
Micronutrients is "small" nutrients
Carbohydrate fat and protein all contain carbon organic
Minerals does not contain carbon therefore inorganic
Essential nutrients cannot be made, have to take in from food
Non-nutrients can sometimes be beneficial or look or taste better
Other compounds present in foods; phytochemicals, antioxidants;
e.g., burning taste in hot peppers, red color of tomato
Dietary supplements
Purified nutrients; pills, powders, liquids
Elemental diets
Purified ingredients of known chemical composition; supply essential
nutrients to those who can’t eat foods; support life, but not optimal
growth & health
Why We Eat:
HALF - Happy, anxious or angry, lonely, fearful or frustrated,
Sensory experience (smell)
Relieving tension through eating (ie. ice cream) can release endorphins
but 10 mins of walking can release the same amount of endorphins
Nutrition and Disease Prevention:
Malnutrition
Nutrient deficiency (undernutrition), excess (overnutrition), imbalance of
nutrients
Chronic diseases
Long-term, degeneration or deterioration of body organs; e.g., HD, CA,
diabetes, dental disease, osteoporosis
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Multiple causation
Different disease forms; individual genetic differences
Important to also think of malnutrition as over consumption
Type 1 diabetes is more genetic based and type 2 is more lifestyle based
Type 1 is more likely if there has been a respiratory issue in early years
of life
"Healthy at every size"
Limit never eliminate
Oils, nuts, seeds, salmons and avocados are high calories (high caloric
density) and high nutrients
Enriched means the nutrients come out of the food when being processed
so they put the nutrient back in (ie. flour and bread)
Fortified means they add the nutrients (ie. calcium in orange juice,
vitamin D in milk)
Functional foods (ie. fruits, veggies, fish)
Omega is the most common nutraceutical
** organic foods - grown without pesticides or fertilizers
Just because it's says organic does not mean it is necessarily
Organic means pesticide FREE
All foods are organic because they contain carbon
Epidemiological study takes a lot of time and money
Randomized control trials are best
What is food?
An edible substance with physical and chemical properties
An acceptable substance
Based on preference
Provides energy & nutrients to allow body to stay alive & grow
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