I'm the kind of person that likes to analyse everything to death (and make lists).
1) Here's what I wrote on Synthesis: Low-Carb and Food Reward/Palatability, and Why Calories Count:-
"I’m going to stick my neck out here and state that fat, sedentary people do better on low-carb diets because:-
Fat, sedentary people have severe muscular insulin resistance.
This results in chronic hyperinsulinaemia and acute hyperinsulinaemia on eating carbs (which causes lethargy & increased sedentariness).
Chronic hyperinsulinaemia impairs the Phase I insulin response.
This impairs the stability of the blood glucose control system, resulting in large fluctuations in blood glucose level on eating carbs.
A rapidly-falling blood glucose level causes severe hunger pangs (I’ve experienced this under medical supervision).
Severe hunger pangs cause overeating, resulting in increased fatness.
GOTO 1
Low-carb diets reduce the large fluctuations in blood glucose level. Once normal blood glucose control has been restored by bodyfat loss & exercise, low-carb diet is no longer required."
I added a hot-link that wasn't in the original comment. Thanks to Sam Knox for linking to that study.
Lethargy & increased sedentariness result in very few calories burned (BMR/RMR + TEF). Eliminating (lethargy & increased sedentariness) greatly increases calories burned without conscious effort (BMR/RMR + TEF + TEA + NEAT/SPA). This is why people on low-carb diets can eat more and still lose weight. The Energy Balance Equation still applies.
2) I've noticed that people conflate Food Tastiness with Food Reward. Here's my opinion:-
Excessive reward = Moreish. What your food tastes like is only vaguely relevant. Avoid eating moreish foods, unless you're a body-builder who's trying to bulk.
Here's what I wrote on Food Reward: “There’s Always Room For Dessert”:-
"I believe that obesity is physiological AND neurological (the proportions varying from person to person).
For example, one chocolate doesn’t disturb my blood glucose & insulin, but I still crave another. And another. Ad nauseam."
Physiological cravings take hours to kick-in.
Neurological cravings take seconds to kick-in.
Emily Deans wrote:-
"Multiple times I’ve used naltrexone (an opiate blocker) to stop binge eating. The cravings go away. It only takes a few weeks. It’s a nice way to undo addiction/reward without starving someone… not FDA approved."
That's pretty damning evidence for the existence of Food Reward. How can naltrexone block something that doesn't exist?
Finally Monsieur, a waffer-thin mint.
Thursday, March 8, 2012
How stuff works, Part 2.
Labels:
Blood glucose,
Cravings,
Food,
Food Reward,
Hunger,
Insulin,
Moreish foods,
Neurology,
Obesity,
Physiology
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment