Sugar:
Sucrose, fructose and glucose Part 1
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Fruit is an optimal carbohydrate for the human body it contains the disaccharide, sucrose. Sucrose is broken down into glucose and fructose.
Despite all the debate around fructose, what has been shown is that fructose inhibits the release of insulin by glucose. In people with impaired insulin
function/sensitivity fructose can be beneficial as it stimulates the enzymes needed to bring sugars into the cells.
According to Ray Peat, PhD, Potassium plays a vital role in delivery of glucose into the cell without causing a drop in blood sugar, that happens when insulin alone is used to perform this function.
Fructose has the ability to by-pass fatty acid inhibition of glucose metabolism leaving it available for oxidation when glucose is not. The metabolism of diabetes involves the oxidation of fatty acids instead of glucose, suggesting that the ingestion of fructose would be appropriate in the management of metabolic dysglycemia.
Instead Diabetics are encouraged to eat whole grains, beans and "complex carbs" (glucose) and avoid sugars. Ray Peat suggests that it is the fructose and sucrose that should be used instead because they will not cause the cascade of hormonal problems that glucose will. Fructose doesn't just increase glucose metabolism, but increases the whole metabolism. Some experiments have shown a
50% increase in metabolic rate.
Honey and table sugar are also sources of sucrose.
Other roles of fructose:
Produces uric acid - uric acid is considered to be one of our main antioxidants!
Fructose will increase cholesterol which is an important anti-oxidant in the body, is used to regulate insulin and important for cellular metabolism and the production of steroidal hormones.
The primary sugar involved in reproduction, in the seminal fluid and the intrauterine fluid and in the developing fetus. The placenta turns glucose from the mother's blood into fructose.
Glucose can move from the fetus back into the mother's blood, fructose cannot, resulting in high concentrations of fructose in the amniotic fluids Catalyzes the oxidation of glucose to carbon dioxide, helping cells use energy more efficiently.
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Sugar: Sucrose, fructose and glucose Part 1
https://www.youtube.com/watch?v=K3f8a6bBbG4
Sugar: Sucrose, fructose and glucose Part 2
https://www.youtube.com/watch?v=GY0LZcqtWX8
- published: 10 Feb 2012
- views: 20344