Study Guides (238,242)
Canada (115,037)
Nutrition (303)
NUTR 1010 (142)

NUTR1010 Final: Exam Notes.pdf

4 Pages
Unlock Document

University of Guelph
NUTR 1010
Jess Haines

The “Other” Food Group C OFFEE , TEA, AND CAFFEINE ▯ Most commonly consumed beverages: 1. Water 2. Tea 3. Coffee Caffeine is… • Most commonly consumed drug • Naturally occurring alkaloid o Examples: morphine and caffeine o Naturally occurs in plants • Stimulates central nervous system (gives energy) • Recommended no more than 400mg caffeine/day • Can affect bone health, insomnia, and irritability Tea in Canada • On the rise: o 1996: 43L per person per day (~1/2 cup day) o 2005: 70L per person per day (~3/4 cup day) • Why? o Tea more available o Health benefits Tea consumption TYPE % OF TEA PRODUCED AND CONSUMED POPULAR IN: WORDWIDE Black 76-78% Europe, NA, North Africa Green 20-22% Asia, India, middle east, etc. Oolong <2% China, Taiwan ▯ Teas come from one plant • Camellia sinensis o Once the leaves are harvested, length of time exposed to air determines taste and colour of resulting tea ▪ (Black = most oxidation, oolong = mid oxidation, green = least oxidation) Catechins • Tea is rich in these antioxidants • Part of flavonoid fam of antioxidants • Highest concentrations in green tea, followed by black and oolong o Adding milk doesn’t affect catechin absorption Health benefits from tea (partially from catechins) • Improves antioxidant status (reduces risks for many diseases) • Decrease risk heart disease (>3 cup/day)  antioxidants in tea can reduce LDL- cholesterol • Increase bone density • Improves mental performance o In part because of caffeine and amino acid in tea (theanine) • Help prevent dental carries (natural fluoride) • Antimicrobial and anti-inflammatory effects Benefits aren’t always consistent • The dose req’d to see effects ranges from 1-6 cups a day • Catechin content varies depending on: o Geographical cond’n and growing cond’n How leaves are processed prior to drying o o Type of tea (blended, decaf, instant) o Preparation (amt used, steeping time, whether tea stirred and how many times, whether bag is squeezed) Theanine (another “perk” of tea) • Amino acid fo
More Less

Related notes for NUTR 1010

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.