1. Alcohol is highly calorific and easily over-consumed. Compare its calorific value with
the other components of our diet:
Alcohol is 7kcal/g, fat is 9 kcal/g, both protein and carbohydrate are roughly 4kcal/g).
2. The simple presence of alcohol in your system has a hugely negative impact on your
abilitytometabolisefat. Period!
This was illustrated by a study where 8 men were given two drinks of vodka and lemonade
separated by 30 minutes. Each drink contained just under 90 calories. Fat metabolism was
measured before and after consumption of the drink.
The reason why alcohol has this dramatic effect on fat metabolism has to do with the way
alcohol is handled in the body. Rather than getting stored as fat, the main fate of alcohol is
conversion into acetate and the presence of acetate in the system puts the brakes on fat
loss. The greater the quantity of alcohol, the greater the quantity of acetate created, the
less likely fat is metabolised.
In other words, your body tends to use whatever you feed it, and after a time becomes
adapted to the macro nutrient intake. Unfortunately when acetate levels rise, your body
burns the acetate preferentially.
So the body simply burns the acetate first, this basically
pushes fat oxidation out of the metabolic equation.
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