Benefits and Risks of Soy Protein
Soy and Whey manufacturers did a superb job of confusing the public. For 5 years now the health and fitness community has been drinking up whey.
Then research showed 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 soy 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 found its popularity primarily among vegetarians. The Soy manufacturers watched as whey protein sales skyrocketed, thus, in order to grab their own position, they capitalized within a "health" marketplace, primarily targeting women. Some of the referenced studies are valid, but are not representative of "the whole picture."
In one particular study published in France, two groups of apparently healthy men were fed isocaloric diets with one group using soy protein, the other using animal products as a protein source. The goal was to see if there was a reduced propensity for gallstones if animal proteins are replaced by soy. Since gallstone accumulation can be linked with crystallization of cholesterol, at its conclusion the study examined cholesterol levels.
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 did not seem 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.
There are many benefits associated with the consumption of isoflavones, including a lowering of cholesterol levels. Contrarily, research has shown that the ingestion of meat is associated with an elevated cholesterol levels. This is not to say that people who eat soy will be healthier and have a better cholesterol profile than those who consume meat and vegetables. This just goes to show you that extrapolations drawn from research is often taken out of context and overemphasized.
Scientific studies indicate that there are cancer fighting benefits of a meal plan rich in vegetables like soy. Most people would not assume that people who ingest soy instead of milk, egg-whites, and lean protein will demonstrate improved health, if a physical activity ingredient is included, the study would be invalidated.
Most of the research information promoted specific to soy is publicized by organizations with a vested interest in Soy Protein sales, such as The United Soybean Board. This does not mean that soy is not a good source of protein, but rather that the health benefits, as is commonplace, have been taken out of context and overblown to sell products.
From a metabolic benefit standpoint, it appears based on the most recent and applicable studies, that you are best off getting your supplemental protein from a mix of whey and casein. Watch as the newest protein supplements to hit the market feature this mix. Unless you are vegetarian, I'd suggest you're best off including as wide a variety of foods as possible in your complete dietary regimen. If this includes a daily soy protein supplement I believe you'll do quite well. - 17269
Then research showed 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 soy 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 found its popularity primarily among vegetarians. The Soy manufacturers watched as whey protein sales skyrocketed, thus, in order to grab their own position, they capitalized within a "health" marketplace, primarily targeting women. Some of the referenced studies are valid, but are not representative of "the whole picture."
In one particular study published in France, two groups of apparently healthy men were fed isocaloric diets with one group using soy protein, the other using animal products as a protein source. The goal was to see if there was a reduced propensity for gallstones if animal proteins are replaced by soy. Since gallstone accumulation can be linked with crystallization of cholesterol, at its conclusion the study examined cholesterol levels.
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 did not seem 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.
There are many benefits associated with the consumption of isoflavones, including a lowering of cholesterol levels. Contrarily, research has shown that the ingestion of meat is associated with an elevated cholesterol levels. This is not to say that people who eat soy will be healthier and have a better cholesterol profile than those who consume meat and vegetables. This just goes to show you that extrapolations drawn from research is often taken out of context and overemphasized.
Scientific studies indicate that there are cancer fighting benefits of a meal plan rich in vegetables like soy. Most people would not assume that people who ingest soy instead of milk, egg-whites, and lean protein will demonstrate improved health, if a physical activity ingredient is included, the study would be invalidated.
Most of the research information promoted specific to soy is publicized by organizations with a vested interest in Soy Protein sales, such as The United Soybean Board. This does not mean that soy is not a good source of protein, but rather that the health benefits, as is commonplace, have been taken out of context and overblown to sell products.
From a metabolic benefit standpoint, it appears based on the most recent and applicable studies, that you are best off getting your supplemental protein from a mix of whey and casein. Watch as the newest protein supplements to hit the market feature this mix. Unless you are vegetarian, I'd suggest you're best off including as wide a variety of foods as possible in your complete dietary regimen. If this includes a daily soy protein supplement I believe you'll do quite well. - 17269
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