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THE OBESITY CODE COOKBOOK
4. Ketosis (one to three days after fasting starts): The storage form of
fat, triglycerides, is broken into the glycerol backbone and three fatty
acid chains. Glycerol is used for gluconeogenesis. Fatty acids may
be used directly for energy by many tissues in the body, but not the
brain. Ketone bodies, capable of crossing the blood-brain barrier, are
produced from fatty acids for use by the brain. Ketones can supply up
to 75 percent of the energy used by the brain.
5. Protein conservation phase (after five days): High levels of growth
hormone maintain muscle mass and lean tissues. The energy
required to maintain basal metabolism is almost entirely produced
by available free fatty acids and ketones. Increased norepinephrine
(adrenalin) levels prevent a decrease in metabolic rate.
With fasting periods of sixteen to thirty-six hours, blood glucose lev-
els remain normal as the body switches over to burning fat for energy.
More recently, alternate daily fasting has been studied as an acceptable
technique for weight loss. Here is a straightforward approach to effec-
tively lower insulin and lose weight by managing when you eat.
Step 1: Eat only when you’re hungry
Many people eat at mealtimes even if they are not hungry. For example,
the common advice is to eat something, anything, as soon as you step
out of bed. But breakfast needs to be downgraded from “most important
meal of the day” to “meal.” Remember that you will always eat breakfast.
It is simply the meal that breaks your fast. Therefore, if you do not eat
until 2:00 p.m., that is your “break fast” meal. Is there something mag-
ical about eating a large amount of food early in the day, even if you are
not particularly hungry or inclined to eat? No. Is there a rule that says
you have to eat three times a day, every day, even if you don’t have an
appetite? No. Eating, almost by its very definition, does not make you
lose weight.