Tuesday, June 11, 2013

Been There, Done That

High sugar intake linked to low dopamine release in insulin-resistant patients
"A better understanding of the cerebral mechanisms underlying abnormal eating behaviors with insulin resistance would help in the development of interventions to counteract the deterioration caused by overeating and subsequent obesity. We suggest that insulin resistance and its association with less dopamine release in a central brain reward region might promote overeating to compensate for this deficit." 

Nice Data.   Erroneous Conclusion.
If sugar causes lower dopamine- which is the primary reward neurotransmitter- it should extinguish sugar eating behavior.

High insulin levels lead to overeating via post-meal hypoglycemia.   Low blood sugar triggers eating behavior.
Low dopamine levels lead to demotivation and depression and dementia.