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Why do we eat what we do? - Coggle Diagram
Why do we eat what we do?
Biological aspects (Genes)
Dina et al (2007)
FTO gene on chromosome 16q12.2 linked to early onset + severe obesity in both adults + children of European ancestry
Yang et al (2007)
127 candidate genes associated with obesity-related phenotypes
Biological aspects (Genes + Environment)
Qi et al (2014)
Studied how consumption of fried foods related to genetic risk of obesity
People consuming fried foods more often had higher BMI scores than those who consumed less
High risk + frequent consumption of fried foods = highest BMI
Psychological aspects
Stress
Increased consumption of high-fat food options vs low-fat food (e.g. M&M's vs grapes)
Zellner et al (2006)
Change in food choice particularly significant for dieters + women
Mood
Complex relationship = mood affects eating + vice versa
Singh (2014)
Reward + gratification associated with eating = Dopamine (DA) production (reward + pleasure)
Volkow et al (2012)
Highly palatable foods activate same brain areas of reward + pleasure seen in drug addiction
Social aspects
1. Social norms
Peers influence what we eat
Ball et al (2010)
- Social norms linked to eating
Event norms
E.g. Birthdays = unhealthy food
Obesogenic environment
Promoting
positive energy balance
(more calories taken in than burning)
E.g. Adverts for energy dense food/drink
"Takeaway culture", convenience food, increased meal size
Media
More TV watching
Sedentary lifestyle instead of PA
Promotion of unhealthy consumption
E.g. TV snacking, adverts