BIOL 2050U Lecture Notes - Intrauterine Device, Skimmed Milk, Dental Caries

27 views2 pages
29 Jan 2013
School
Department
Professor
Protein Requirement
Growing people / production of new cells → youngest age group have highest
requirement
Pregnant woman / growing fetus and organs / lactation (milk is rich in protein)
Adults / maintenances / synthesis of Hb, enzymes, hormones → lower requirement with
age
Glycogen Loading And The Enhancement Of Athletic
Performance
High carbohydrate diet (long before exercise) / more glycogen in muscles / more can be
broken down to glucose / prolonged rate of respiration / longer but not faster exercise
Concept Of A Balanced Diet And Problems Which Arise
From Vegetarian And Weight-Loss Diets
Balanced diet: correct amounts and properties of all/essential nutrients
Fat in diet: makes foot tasty and → encourages eating / rather stored than used as
respiratory substrate / provides essential fatty acids → must be in diet / provides more
energy than the same mass of carbohydrates
VEGETARIAN DIETS
o Based on cereal grains, vegetables
o Total energy yield may be reduced (-)
o Must contain more protein to provide the supply for essential amino acids
o Shortage of vitamin B12 and D, iron (→anaemia), zinc possible
WEIGHT LOSS DIETS
o Obesity → energy imbalance → energy intake with food > energy expenditure in
exercise
o Use of muscle and other tissue proteins for energy production - causing wasting
o SYMPTOMS: tooth decay / low blood pressure / constipation / menstruation
ceasing
o INCREASED RISK OF: infections / vitamin and mineral deficiency diseases
Ca2+ needs can be met by drinking skimmed milk
Iron supply may need a supplement (-)
Table 16-5-1: Dietary demands in pregnancy and lactation
REQUIREMENT
PREGNANCY
LACTATION
Protein
Growth of fetus, placenta, uterus,
breasts
High amino acid content of milk for
growth of baby
Iron
For fetal Hb and increase in mother's
Synthesise of baby's Hb
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
Monthly
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.