Casein Protein, How Much is Too Much?
Supplement manufacturers have done a wonderful job of confusing the fitness wanting public. For the last 5 years the bodybuilding community has gobbled up soy protein.
Then studies revealed that due to its fast gastric emptying properties most of the protein taken in via whey protein is metabolized and burned up in the liver. The whey manufacturers first responded by increasing the number of grams per serving. Why not? More protein would have to be consumed, thus more protein is sold.
Soy is popular with vegetarians. The Soy manufacturers looked on as whey protein sales sky rocketed, and, in to get their own piece of the pie, they went after the "health" market, primarily women. Many of the studies the soy manufacturers cite are valid, but do not represent the whole picture.
In one particular study, 2 groups of men were fed diets with one group ingesting soy and the other ingesting animal products as the protein source. The idea was to find out if there was a decreased likelihood for gallstones if animal proteins were replaced by soy protein. Since gallstone accumulation is often linked with crystallization of cholesterol, at the studies conclusion it examined cholesterol.
The study showed that cholesterol crystallization was slightly retarded in the soy group extrapolating that soy can help in preventing gallstones. Here's what the study failed to address. There wasn't any control over fruit and vegetable intake. Soy is a vegetable, and it does happen to fall into the group of veggies that are high in isoflavones.
Isoflavones are very closely tied to many health benefits including a lowering of cholesterol levels. On the other hand, we've known for some time that the consumption of meat is linked with an elevation of the cholesterol level. This does not mean that people who eat soy will have better cholesterol than people who eat chicken, turkey, egg, fish, and other vegetables. This clearly shows that conclusions drawn from studies are very often taken out of their proper context and overemphasized.
Many studies show the cancer resistive benefits of a nutrition plan heavy in vegetables, we do not take this to mean that people who consume soy instead of milk, egg, and animal protein will be in better health, if an exercise is part of the plan conclusions in non-exercising people will always be invalidated.
Most of the research promoted about soy is publicized by companies with a financial stake in Soy Protein sales. The Soybean Board is a good example. Very often the elements of a sound study are taken out of context to boost sales of soy.
As far as metabolism is concerned it appears that you are best off ingesting supplemental protein from a mix of whey & casein protein. The new protein supplements will hit the market and feature this exact combination of proteins. You are best to include a wide a variety of food as possible in your nutrition program. - 17274
Then studies revealed that due to its fast gastric emptying properties most of the protein taken in via whey protein is metabolized and burned up in the liver. The whey manufacturers first responded by increasing the number of grams per serving. Why not? More protein would have to be consumed, thus more protein is sold.
Soy is popular with vegetarians. The Soy manufacturers looked on as whey protein sales sky rocketed, and, in to get their own piece of the pie, they went after the "health" market, primarily women. Many of the studies the soy manufacturers cite are valid, but do not represent the whole picture.
In one particular study, 2 groups of men were fed diets with one group ingesting soy and the other ingesting animal products as the protein source. The idea was to find out if there was a decreased likelihood for gallstones if animal proteins were replaced by soy protein. Since gallstone accumulation is often linked with crystallization of cholesterol, at the studies conclusion it examined cholesterol.
The study showed that cholesterol crystallization was slightly retarded in the soy group extrapolating that soy can help in preventing gallstones. Here's what the study failed to address. There wasn't any control over fruit and vegetable intake. Soy is a vegetable, and it does happen to fall into the group of veggies that are high in isoflavones.
Isoflavones are very closely tied to many health benefits including a lowering of cholesterol levels. On the other hand, we've known for some time that the consumption of meat is linked with an elevation of the cholesterol level. This does not mean that people who eat soy will have better cholesterol than people who eat chicken, turkey, egg, fish, and other vegetables. This clearly shows that conclusions drawn from studies are very often taken out of their proper context and overemphasized.
Many studies show the cancer resistive benefits of a nutrition plan heavy in vegetables, we do not take this to mean that people who consume soy instead of milk, egg, and animal protein will be in better health, if an exercise is part of the plan conclusions in non-exercising people will always be invalidated.
Most of the research promoted about soy is publicized by companies with a financial stake in Soy Protein sales. The Soybean Board is a good example. Very often the elements of a sound study are taken out of context to boost sales of soy.
As far as metabolism is concerned it appears that you are best off ingesting supplemental protein from a mix of whey & casein protein. The new protein supplements will hit the market and feature this exact combination of proteins. You are best to include a wide a variety of food as possible in your nutrition program. - 17274
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