obesity Flashcards
what is obesity defined as
Excess body fat accumulation with multiple organ
specific pathological consequences” (Haslam et al.,
2006)
metabolic syndrome
3 or more of the following:
- Obesity
* Waist circumference ( > 102cm; > 88cm) Or BMI ≥ 30
kg.m-2
* High triglycerides (≥ 1.7 mmol/L)
* Low HDL ( <1.03 mmol/L;
< 1.29 mmol/L)
* Hypertension (≥ 130 / ≥ 85 mmHg)
* High fasting glucose (> 6.1 mmol/L
leptin
Leptin inhibits hunger and
lowers appetiteIncreased body fat =
increased leptin BUT
increased resistance to its
effects
ghrelin
Ghrelin is the
‘hunger hormone’
Concentration of
ghrelin reduces when
you eat
Should be lower in
individuals with
higher BW
NICE reccomenddations
1- realistic healthy target weight (5-10% of original weight
2- aiming for max weekly weight loss of 0.5-1 kg
3- long term lifestyle changes
4- multicomponent with varied approach
5- reccomending regulary physical activity
6- behaviour change techniques
7- providing ongoing support
pevalence of obesity
of every 1000 adults in uk 259 are obese
weight loss appropriate intensity
3500 kcals are 1lb fat loss
lowest calorie level for weight maintenance is 1200 kcal daily
minimum calorie intake to assure adequate intake of essential micro and macronutrients is 500 kcal daily
commony provided under mediccal supervision in very low calorie diets