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help me with this sugar debate....
- Thread starter rykertest
- Start date
javaguru
Banned
A snickers bar
http://www.nal.usda.gov/fnic/foodcomp/cgi-bin/list_nut_edit.pl
http://www.nal.usda.gov/fnic/foodcomp/search/
now look up oatmeal, egg whites and half a mango as comparison. Macronutrients, micronutrients and phytochemicals all need to be considered as well as preservatives, additives and phytochemicals.
I don't advocate "meal replacement bars" because they are just a glorified snickers bar. Also, fructose has gotten a bad rap, it will preferentially replenish liver glycogen which is the primary source for circulating glucose on demand and brain glucose. The average liver can easily store 150g of glycogen and the human brain can use over 100g a day for normal functioning.
"The liver in a normal 70 kg human adult weighs approximately 1.5 kg, which constitutes some 2 to 3 percent of the body weight. [Metabolic fluxes quoted here refer to the typical 70 kg adult. Most of the data has been obtained with males and tissue proportions will be somewhat different with females.] The major cell type of liver is the hepatic parenchymal cell often simply referred to as a hepatocyte, a cell of epithelial origin. The liver is uniquely situated anatomically interposed between the intestinal tract and general circulation. It is also unique in its relationship to the endocrine pancreas, whose hormonal signals of insulin and glucagon play a predominant role in metabolic homeostasis. The liver receives a large volume of venous blood from the intestinal tract via the portal vein, a small volume of arterial blood via the hepatic artery, and is drained by the hepatic veins into the inferior vena cava near the heart. It is the first to "see" all the metabolites delivered from the intestine, with the exception of lipid, and the first to "see" the pancreatic hormones, insulin and glucagon. The liver plays a very important role in mammalian metabolic homeostasis. It also has perhaps the greatest metabolic flexibility of any organ, showing a tremendous adaptability to metabolic fluxes and an ability to adjust its composition depending on the presence or absence of incoming nutrients and the types of nutrients being delivered. It rapidly undergoes changes in size and in glycogen, protein and lipid content. In the fed state, the liver contains 5 to 10 percent of its wet weight as glycogen, which will reduce to near zero in a 24-hour fast, but will be rapidly replenished upon feeding. The enzymatic content of the liver also changes in response to nutrient intake. If, for example, an individual is placed on a high protein diet, in a day or two the liver will show a large increase in the content of those enzymes involved in amino acid metabolism and glucose production from the amino acid carbon. A high carbohydrate diet would produce the opposite effect. The liver plays a central role in whole body homeostasis. It is the primary place for deposition of stored carbohydrate and likewise the primary site from whence blood glucose is maintained; it also plays a pivotal role in lipid, protein and nitrogen homeostasis. Perhaps the most dramatic illustration of the metabolic capacity of liver is that it exports in a typical adult approximately 180 grams of glucose, 100 grams of triglyceride, and 14 grams of albumin per day, and these are only three of the many products that the liver must supply. The metabolic energy used by the liver to support these activities is primarily derived by fatty acid oxidation."
http://www.nal.usda.gov/fnic/foodcomp/cgi-bin/list_nut_edit.pl
http://www.nal.usda.gov/fnic/foodcomp/search/
now look up oatmeal, egg whites and half a mango as comparison. Macronutrients, micronutrients and phytochemicals all need to be considered as well as preservatives, additives and phytochemicals.
I don't advocate "meal replacement bars" because they are just a glorified snickers bar. Also, fructose has gotten a bad rap, it will preferentially replenish liver glycogen which is the primary source for circulating glucose on demand and brain glucose. The average liver can easily store 150g of glycogen and the human brain can use over 100g a day for normal functioning.
"The liver in a normal 70 kg human adult weighs approximately 1.5 kg, which constitutes some 2 to 3 percent of the body weight. [Metabolic fluxes quoted here refer to the typical 70 kg adult. Most of the data has been obtained with males and tissue proportions will be somewhat different with females.] The major cell type of liver is the hepatic parenchymal cell often simply referred to as a hepatocyte, a cell of epithelial origin. The liver is uniquely situated anatomically interposed between the intestinal tract and general circulation. It is also unique in its relationship to the endocrine pancreas, whose hormonal signals of insulin and glucagon play a predominant role in metabolic homeostasis. The liver receives a large volume of venous blood from the intestinal tract via the portal vein, a small volume of arterial blood via the hepatic artery, and is drained by the hepatic veins into the inferior vena cava near the heart. It is the first to "see" all the metabolites delivered from the intestine, with the exception of lipid, and the first to "see" the pancreatic hormones, insulin and glucagon. The liver plays a very important role in mammalian metabolic homeostasis. It also has perhaps the greatest metabolic flexibility of any organ, showing a tremendous adaptability to metabolic fluxes and an ability to adjust its composition depending on the presence or absence of incoming nutrients and the types of nutrients being delivered. It rapidly undergoes changes in size and in glycogen, protein and lipid content. In the fed state, the liver contains 5 to 10 percent of its wet weight as glycogen, which will reduce to near zero in a 24-hour fast, but will be rapidly replenished upon feeding. The enzymatic content of the liver also changes in response to nutrient intake. If, for example, an individual is placed on a high protein diet, in a day or two the liver will show a large increase in the content of those enzymes involved in amino acid metabolism and glucose production from the amino acid carbon. A high carbohydrate diet would produce the opposite effect. The liver plays a central role in whole body homeostasis. It is the primary place for deposition of stored carbohydrate and likewise the primary site from whence blood glucose is maintained; it also plays a pivotal role in lipid, protein and nitrogen homeostasis. Perhaps the most dramatic illustration of the metabolic capacity of liver is that it exports in a typical adult approximately 180 grams of glucose, 100 grams of triglyceride, and 14 grams of albumin per day, and these are only three of the many products that the liver must supply. The metabolic energy used by the liver to support these activities is primarily derived by fatty acid oxidation."
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