SSEH3301 Lecture Notes - Lecture 10: Red Meat, Internal Control, Commonwealth Scientific And Industrial Research Organisation
SSEH3301: Lecture 10
-BMI increase, risk of obesity also increase!
-Need energy imbalance for weight loss (EI<EE)!
-Australian guide to healthy eating: represent proportion of different food to intake!
-But people still look for alternative (diet)!
-multimillion dollar industry!
-Some are dangerous!
-Some not scientifically backed!
-Potential risks!
!
!
-encourage high protein intake
(unlimited consumption of those listed)!
-Avoid CHO!
-typical Australian 250-300g of CHO!
-This diet: 15g of CHO!
Start out stringent with 15g CHO/day,
overtime, increase till up to 60g CHO/
day (still low compared to 250-300)!
-No limit on total kJ (eat as much as
you want) - when restrict CHO that
severely = only so much of those foods
you can consume = so people on this
diet usually only consume 6000-7000
kJ/day!
-Body will instead rely on burning fat for energy in absence of CHO = state of ketosis (reduces
appetite)!
= turns our healthy pyramid on its head!
-instead, top portion of pyramid = whole grain food!
-Lots of poultry etc!
-example of ketogenic/atkins diet!
-mainly water loss, not fat loss!
-Lots of water stored when intake CHO!
-Weight loss from this is not because of
reduction of CHO, it is because overall
on this diet, only so many kJ you can eat
(6000-7000kJ)!
-This reduction in total kJ = weight loss,
not because of reduction in CHO!
-Eating less overall on this diet: cutting
out whole foods here, and the foods we
can eat not as palatable!
-Increasing protein in diet, helps people
feel fuller (Satiety)!
-ketoacidosis = acidosis = build up of uric acid =
gout!
-dehydration and imbalance = impact kidney
function!
-bad breath from ketoacidosis!
-headache and tiredness because primary fuel of
brain is glucose !
-when cut out whole food: V&M deficiencies and
impacts on bone health!
- coronary risk because low CHO diets (in
ketogenic diet) associated with fat intake
(saturated and trans) = not good for coronary risk !
bracket: percentage of energy intake
coming from fat!
High cholesterol because more meat,
cream, cheese etc!
Iron: low compared to FP!
!
-PRESUMED! = we don’t really
know = educated guess!
-healthy?!
-Some healthy aspects (aspect of
avoiding processed food) =
emphasis towards more raw and
natural foods!
Limitations: !
-cut out whole food groups: not
good (in terms of V&M)!
-Also, big reliance on meat and
fish = expensive in long term!
-If meat is from red: evidence that
high intake or red meat in long term = negative for health!
-Will lose weight: since cut out soda, lollies, unhealthy stuff!
-BUT can also lose the same amount of weight by cutting those sweets on a regular diet!
-increase protein but also keeping fat on
a reasonable level!
-CHO limited diet (not low CHO like
Atkins, just limited)!
250-300g normal!
<60g Atkins!
100-120g CSIRO!
Allow 5500kJ to be higher if physically
active!
-take servings of bread/cereal, replace
with meat!
-fat <30 = achieved by CSIRO!
-bump protein up at expense of bringing
CHO down!
