Low Carb Diet
-Pasta, rice, or vegetables eaten on their own do not
convert to fat. They convert to glycogen and are stored in muscle and liver
cells. A study by Kevin Acheson showed that when people were fed over 500 g of
carbs (roughly 1.3 kg of cooked pasta), it only converted to 10 g of fat—large
amounts stored as glycogen.
-In 1997, Dr Susan
Holt from the University of Sydney fed people 1000 kJ portions of food and
measured the amount of glucose and insulin produced. What she found was protein
foods such as beef, chicken and fish stimulated the release of larger amounts
of insulin than a 1000 kJ serving of white pasta. The reason? Protein foods
also stimulate the release of insulin, and some specific amino acids (the
building blocks of protein) are potent stimulators of insulin.
-For each gram stored as glycogen in the muscle and liver,
there is about 3-4 g of water. On a low carb diet, after 7-14 days, a person
basically goes through diuresis which makes weight loss more dramatic.
-When deprived of carbs, the body uses ketone (emergency
backup fuel). Some studies have shown
that the metabolic rate can slow as much as 20% while the human body is in this
state.
-Consider the
production of glucose from protein, and that while in ketosis the body cannibalizes
its own muscle in a bid to get some carbohydrate to the above-mentioned
systems, and you can understand why valuable muscle and water loss make a huge
chunk of the weight loss. A loss of lean muscle means a further decrease in metabolism.
Glycemic Index (GI)
-This measure how fast the carbohydrate-based foods release
sugar (glucose) into the blood.
- Glycemic load (GL) is the GI food multiplied by the grams of carbohydrates. A study was
conducted between two groups. One followed a high GL diet and other was a low
GL diet. There was no difference between the two groups with weight loss.
-The American Diabetes
Association states: “At this time, there is insufficient information to
determine whether there is a relationship between glycaemic index or glyceaemic
load of diets and the development of diabetes.”
-Dairy foods have a low GI but have a high insulin index. For
example, whole milk was 41 (low GI), the
insulin index was a whopping 148. (Skin milk is 37 and 140.)
Information for this posting was from: Bilsborough, S. (2007). Finding facts in fad diets. Issues, 84, 28-31.
As for Dr. Carm, she is on a see food diet. Not seafood, but see food.
[This means she sees food and eats it!]
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